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Tag modification.
Represents a hyperlink, linking to another resource.
Represents a hyperlink, linking to another resource.
An abbreviation or acronym; the expansion of the abbreviation can be represented in the title attribute.
An abbreviation or acronym; the expansion of the abbreviation can be represented in the title attribute.
If the value of the type attribute is file, this attribute indicates the types of files that the server accepts; otherwise it is ignored.
If the value of the type attribute is file, this attribute indicates the types of files that the server accepts; otherwise it is ignored.
The URI of a program that processes the information submitted via the form.
The URI of a program that processes the information submitted via the form. This value can be overridden by a formaction attribute on a button or input element.
Defines a section containing contact information.
Defines a section containing contact information.
The CSS align-content property aligns a flex container's lines within the flex container when there is extra space on the cross-axis.
The CSS align-content property aligns a flex container's lines within the flex container when there is extra space on the cross-axis. This property has no effect on single line flexible boxes.
The CSS align-items property aligns flex items of the current flex line the same way as justify-content but in the perpendicular direction.
The CSS align-items property aligns flex items of the current flex line the same way as justify-content but in the perpendicular direction.
The align-self CSS property aligns flex items of the current flex line overriding the align-items value.
The align-self CSS property aligns flex items of the current flex line overriding the align-items value. If any of the flex item's cross-axis margin is set to auto, then align-self is ignored.
This attribute defines the alternative text describing the image.
This attribute defines the alternative text describing the image. Users will see this displayed if the image URL is wrong, the image is not in one of the supported formats, or until the image is downloaded.
The animation CSS property is a shorthand property for animation-name, animation-duration, animation-timing-function, animation-delay, animation-iteration-count and animation-direction.
The animation CSS property is a shorthand property for animation-name, animation-duration, animation-timing-function, animation-delay, animation-iteration-count and animation-direction.
The animation-delay CSS property specifies when the animation should start.
The animation-delay CSS property specifies when the animation should start. This lets the animation sequence begin some time after it's applied to an element.
A value of 0s, which is the default value of the property, indicates that the animation should begin as soon as it's applied. Otherwise, the value specifies an offset from the moment the animation is applied to the element; animation will begin that amount of time after being applied.
Specifying a negative value for the animation delay causes the animation to begin executing immediately. However, it will appear to have begun executing partway through its cycle. For example, if you specify -1s as the animation delay time, the animation will begin immediately but will start 1 second into the animation sequence.
If you specify a negative value for the animation delay, but the starting value is implicit, the starting value is taken from the moment the animation is applied to the element.
The animation-direction CSS property indicates whether the animation should play in reverse on alternate cycles.
The animation-direction CSS property indicates whether the animation should play in reverse on alternate cycles.
The animation-duration CSS property specifies the Length of time that an animation should take to complete one cycle.
The animation-duration CSS property specifies the Length of time that an animation should take to complete one cycle.
A value of 0s, which is the default value, indicates that no animation should occur.
The animation-fill-mode CSS property specifies how a CSS animation should apply styles to its target before and after it is executing.
The animation-fill-mode CSS property specifies how a CSS animation should apply styles to its target before and after it is executing.
The animation-iteration-count CSS property defines the number of times an animation cycle should be played before stopping.
The animation-iteration-count CSS property defines the number of times an animation cycle should be played before stopping.
The animation-name CSS property specifies a list of animations that should be applied to the selected element.
The animation-name CSS property specifies a list of animations that should be applied to the selected element. Each name indicates a @keyframes at-rule that defines the property values for the animation sequence.
The animation-play-state CSS property determines whether an animation is running or paused.
The animation-play-state CSS property determines whether an animation is running or paused. You can query this property's value to determine whether or not the animation is currently running; in addition, you can set its value to pause and resume playback of an animation.
Resuming a paused animation will start the animation from where it left off at the time it was paused, rather than starting over from the beginning of the animation sequence.
The CSS animation-timing-function property specifies how a CSS animation should progress over the duration of each cycle.
The CSS animation-timing-function property specifies how a CSS animation should progress over the duration of each cycle. The possible values are one or several <timing-function>.
For keyframed animations, the timing function applies between keyframes rather than over the entire animation. In other words, the timing function is applied at the start of the keyframe and at the end of the keyframe.
An animation timing function defined within a keyframe block applies to that keyframe; otherwise. If no timing function is specified for the keyframe, the timing function specified for the overall animation is used.
In conjunction with map, defines an image map
In conjunction with map, defines an image map
ARIA is a set of special accessibility attributes which can be added to any markup, but is especially suited to HTML.
ARIA is a set of special accessibility attributes which can be added to any markup, but is especially suited to HTML. The role attribute defines what the general type of object is (such as an article, alert, or slider). Additional ARIA attributes provide other useful properties, such as a description for a form or the current value of a progressbar.
Defines self-contained content that could exist independently of the rest of the content.
Defines self-contained content that could exist independently of the rest of the content.
Defines some content loosely related to the page content.
Defines some content loosely related to the page content. If it is removed, the remaining content still makes sense.
Represents a sound or an audio stream.
Represents a sound or an audio stream.
This attribute indicates whether the value of the control can be automatically completed by the browser.
This attribute indicates whether the value of the control can be automatically completed by the browser. This attribute is ignored if the value of the type attribute is hidden, checkbox, radio, file, or a button type (button, submit, reset, image).
Possible values are "off" and "on"
This Boolean attribute lets you specify that a form control should have input focus when the page loads, unless the user overrides it, for example by typing in a different control.
This Boolean attribute lets you specify that a form control should have input focus when the page loads, unless the user overrides it, for example by typing in a different control. Only one form element in a document can have the autoFocus attribute, which is a Boolean. It cannot be applied if the type attribute is set to hidden (that is, you cannot automatically set focus to a hidden control).
Bold text.
Bold text.
The CSS backface-visibility property determines whether or not the back face of the element is visible when facing the user.
The CSS backface-visibility property determines whether or not the back face of the element is visible when facing the user. The back face of an element always is a transparent background, letting, when visible, a mirror image of the front face be displayed.
The background CSS property is a shorthand for setting the individual background values in a single place in the style sheet.
The background CSS property is a shorthand for setting the individual background values in a single place in the style sheet. background can be used to set the values for one or more of: background-clip, background-color, background-image, background-origin, background-position, background-repeat, background-size, and background-attachment.
If a background-image is specified, the background-attachment CSS property determines whether that image's position is fixed within the viewport, or scrolls along with its containing block.
If a background-image is specified, the background-attachment CSS property determines whether that image's position is fixed within the viewport, or scrolls along with its containing block.
The background-clip CSS property specifies whether an element's background, either the color or image, extends underneath its border.
The background-clip CSS property specifies whether an element's background, either the color or image, extends underneath its border.
If there is no background image, this property has only visual effect when the border has transparent regions (because of border-style) or partially opaque regions; otherwise the border covers up the difference.
The background-color CSS property sets the background color of an element, either through a color value or the keyword transparent.
The background-color CSS property sets the background color of an element, either through a color value or the keyword transparent.
The CSS background-image property sets one or several background images for an element.
The CSS background-image property sets one or several background images for an element. The images are drawn on successive stacking context layers, with the first specified being drawn as if it is the closest to the user. The borders of the element are then drawn on top of them, and the background-color is drawn beneath them.
The background-origin CSS property determines the background positioning area, that is the position of the origin of an image specified using the background-image CSS property.
The background-origin CSS property determines the background positioning area, that is the position of the origin of an image specified using the background-image CSS property.
Note that background-origin is ignored when background-attachment is fixed.
The background-position CSS property sets the initial position, relative to the background position layer defined by background-origin for each defined background image.
The background-position CSS property sets the initial position, relative to the background position layer defined by background-origin for each defined background image.
The background-repeat CSS property defines how background images are repeated.
The background-repeat CSS property defines how background images are repeated. A background image can be repeated along the horizontal axis, the vertical axis, both, or not repeated at all. When the repetition of the image tiles doesn't let them exactly cover the background, the way adjustments are done can be controlled by the author: by default, the last image is clipped, but the different tiles can instead be re-sized, or space can be inserted between the tiles.
The background-size CSS property specifies the size of the background images.
The background-size CSS property specifies the size of the background images. The size of the image can be fully constrained or only partially in order to preserve its intrinsic ratio.
Defines the base URL for relative URLs in the page.
Defines the base URL for relative URLs in the page.
Represents text that must be isolated from its surrounding for bidirectional text formatting.
Represents text that must be isolated from its surrounding for bidirectional text formatting. It allows embedding a span of text with a different, or unknown, directionality.
Represents the directionality of its children, in order to explicitly override the Unicode bidirectional algorithm.
Represents the directionality of its children, in order to explicitly override the Unicode bidirectional algorithm.
Represents a content that is quoted from another source.
Represents a content that is quoted from another source.
Represents the content of an HTML document.
Represents the content of an HTML document. There is only one body element in a document.
The border CSS property is a shorthand property for setting the individual border property values in a single place in the style sheet.
The border CSS property is a shorthand property for setting the individual border property values in a single place in the style sheet. border can be used to set the values for one or more of: border-width, border-style, border-color.
The border-bottom CSS property is a shorthand that sets the values of border-bottom-color, border-bottom-style, and border-bottom-width.
The border-bottom CSS property is a shorthand that sets the values of border-bottom-color, border-bottom-style, and border-bottom-width. These properties describe the bottom border of elements.
The border-bottom-color CSS property sets the color of the bottom border of an element.
The border-bottom-color CSS property sets the color of the bottom border of an element. Note that in many cases the shorthand CSS properties border-color or border-bottom are more convenient and preferable.
The border-bottom-left-radius CSS property sets the rounding of the bottom-left corner of the element.
The border-bottom-left-radius CSS property sets the rounding of the bottom-left corner of the element. The rounding can be a circle or an ellipse, or if one of the value is 0 no rounding is done and the corner is square.
The border-bottom-right-radius CSS property sets the rounding of the bottom-right corner of the element.
The border-bottom-right-radius CSS property sets the rounding of the bottom-right corner of the element. The rounding can be a circle or an ellipse, or if one of the value is 0 no rounding is done and the corner is square.
The border-bottom-style CSS property sets the line style of the bottom border of a box.
The border-bottom-style CSS property sets the line style of the bottom border of a box.
The border-bottom-width CSS property sets the width of the bottom border of a box.
The border-bottom-width CSS property sets the width of the bottom border of a box.
The border-collapse CSS property selects a table's border model.
The border-collapse CSS property selects a table's border model. This has a big influence on the look and style of the table cells.
The border-color CSS property is a shorthand for setting the color of the four sides of an element's border: border-top-color, border-right-color, border-bottom-color, border-left-color
The border-color CSS property is a shorthand for setting the color of the four sides of an element's border: border-top-color, border-right-color, border-bottom-color, border-left-color
The border-left CSS property is a shorthand that sets the values of border-left-color, border-left-style, and border-left-width.
The border-left CSS property is a shorthand that sets the values of border-left-color, border-left-style, and border-left-width. These properties describe the left border of elements.
The three values of the shorthand property can be specified in any order, and one or two of them may be omitted.
The border-right-color CSS property sets the color of the right border of an element.
The border-right-color CSS property sets the color of the right border of an element. Note that in many cases the shorthand CSS properties border-color or border-right are more convenient and preferable.
The border-left-style CSS property sets the line style of the left border of a box.
The border-left-style CSS property sets the line style of the left border of a box.
The border-left-width CSS property sets the width of the left border of a box.
The border-left-width CSS property sets the width of the left border of a box.
The border-radius CSS property allows Web authors to define how rounded border corners are.
The border-radius CSS property allows Web authors to define how rounded border corners are. The curve of each corner is defined using one or two radii, defining its shape: circle or ellipse.
The border-right CSS property is a shorthand that sets the values of border-right-color, border-right-style, and border-right-width.
The border-right CSS property is a shorthand that sets the values of border-right-color, border-right-style, and border-right-width. These properties describe the right border of elements.
The border-right-color CSS property sets the color of the top border of an element.
The border-right-color CSS property sets the color of the top border of an element. Note that in many cases the shorthand CSS properties border-color or border-right are more convenient and preferable.
The border-right-style CSS property sets the line style of the right border of a box.
The border-right-style CSS property sets the line style of the right border of a box.
The border-right-width CSS property sets the width of the right border of a box.
The border-right-width CSS property sets the width of the right border of a box.
The border-spacing CSS property specifies the distance between the borders of adjacent cells (only for the separated borders model).
The border-spacing CSS property specifies the distance between the borders of adjacent cells (only for the separated borders model). This is equivalent to the cellspacing attribute in presentational HTML, but an optional second value can be used to set different horizontal and vertical spacing.
The border-style CSS property is a shorthand property for setting the line style for all four sides of the elements border.
The border-style CSS property is a shorthand property for setting the line style for all four sides of the elements border.
The border-top CSS property is a shorthand that sets the values of border-top-color, border-top-style, and border-top-width.
The border-top CSS property is a shorthand that sets the values of border-top-color, border-top-style, and border-top-width. These properties describe the top border of elements.
The border-top-color CSS property sets the color of the top border of an element.
The border-top-color CSS property sets the color of the top border of an element. Note that in many cases the shorthand CSS properties border-color or border-top are more convenient and preferable.
The border-top-left-radius CSS property sets the rounding of the top-left corner of the element.
The border-top-left-radius CSS property sets the rounding of the top-left corner of the element. The rounding can be a circle or an ellipse, or if one of the value is 0 no rounding is done and the corner is square.
The border-top-right-radius CSS property sets the rounding of the top-right corner of the element.
The border-top-right-radius CSS property sets the rounding of the top-right corner of the element. The rounding can be a circle or an ellipse, or if one of the value is 0 no rounding is done and the corner is square.
The border-top-style CSS property sets the line style of the top border of a box.
The border-top-style CSS property sets the line style of the top border of a box.
The border-top-width CSS property sets the width of the top border of a box.
The border-top-width CSS property sets the width of the top border of a box.
The border-width CSS property sets the width of the border of a box.
The border-width CSS property sets the width of the border of a box. Using the shorthand property border is often more convenient.
The bottom CSS property participates in specifying the position of positioned elements.
The bottom CSS property participates in specifying the position of positioned elements.
For absolutely positioned elements, that is those with position: absolute or position: fixed, it specifies the distance between the bottom margin edge of the element and the bottom edge of its containing block.
For relatively positioned elements, that is those with position: relative, it specifies the distance the element is moved above its normal position.
However, the top property overrides the bottom property, so if top is not auto, the computed value of bottom is the negative of the computed value of top.
The box-shadow CSS property describes one or more shadow effects as a comma-separated list.
The box-shadow CSS property describes one or more shadow effects as a comma-separated list. It allows casting a drop shadow from the frame of almost any element. If a border-radius is specified on the element with a box shadow, the box shadow takes on the same rounded corners. The z-ordering of multiple box shadows is the same as multiple text shadows (the first specified shadow is on top).
The box-sizing CSS property is used to alter the default CSS box model used to calculate widths and heights of elements.
The box-sizing CSS property is used to alter the default CSS box model used to calculate widths and heights of elements. It is possible to use this property to emulate the behavior of browsers that do not correctly support the CSS box model specification.
Represents a line break.
Represents a line break.
Represents a bitmap area that scripts can use to render graphics like graphs, games or any visual images on the fly.
Represents a bitmap area that scripts can use to render graphics like graphs, games or any visual images on the fly.
The title of a table.
The title of a table.
The caption-side CSS property positions the content of a table's caption on the specified side.
The caption-side CSS property positions the content of a table's caption on the specified side.
The capture attribute allows authors to declaratively request use of a media capture mechanism, such as a camera or microphone, from within a file upload control, for capturing media on the spot.
The capture attribute allows authors to declaratively request use of a media capture mechanism, such as a camera or microphone, from within a file upload control, for capturing media on the spot.
<keygen>: A challenge string that is submitted along with the public key.
<keygen>: A challenge string that is submitted along with the public key.
Declares the character encoding of the page or script.
Declares the character encoding of the page or script. Used on meta and script elements.
When the value of the type attribute is radio or checkbox, the presence of this Boolean attribute indicates that the control is selected by default; otherwise it is ignored.
When the value of the type attribute is radio or checkbox, the presence of this Boolean attribute indicates that the control is selected by default; otherwise it is ignored.
Represents the title of a work being cited.
Represents the title of a work being cited.
The clear CSS property specifies whether an element can be next to floating elements that precede it or must be moved down (cleared) below them.
The clear CSS property specifies whether an element can be next to floating elements that precede it or must be moved down (cleared) below them.
The clear property applies to both floating and non-floating elements.
The clip CSS property defines what portion of an element is visible.
The clip CSS property defines what portion of an element is visible. The clip property applies only to elements with position:absolute.
Represents computer code.
Represents computer code.
A single column.
A single column.
A set of columns.
A set of columns.
The CSS color property sets the foreground color of an element's text content, and its decorations.
The CSS color property sets the foreground color of an element's text content, and its decorations. It doesn't affect any other characteristic of the element; it should really be called text-color and would have been named so, save for historical reasons and its appearance in CSS Level 1.
The visible width of the text control, in average character widths.
The visible width of the text control, in average character widths. If it is specified, it must be a positive integer. If it is not specified, the default value is 20 (HTML5).
The column-count CSS property describes the number of columns of the element.
The column-count CSS property describes the number of columns of the element.
The column-fill CSS property controls how contents are partitioned into columns.
The column-fill CSS property controls how contents are partitioned into columns. Contents are either balanced, which means that contents in all columns will have the same height or, when using auto, just take up the room the content needs.
The column-gap CSS property sets the size of the gap between columns for elements which are specified to display as a multi-column element.
The column-gap CSS property sets the size of the gap between columns for elements which are specified to display as a multi-column element.
In multi-column layouts, the column-rule CSS property specifies a straight line, or "rule", to be drawn between each column.
In multi-column layouts, the column-rule CSS property specifies a straight line, or "rule", to be drawn between each column. It is a convenient shorthand to avoid setting each of the individual column-rule-* properties separately : column-rule-width, column-rule-style and column-rule-color.
The column-rule-color CSS property lets you set the color of the rule drawn between columns in multi-column layouts.
The column-rule-color CSS property lets you set the color of the rule drawn between columns in multi-column layouts.
The column-rule-style CSS property lets you set the style of the rule drawn between columns in multi-column layouts.
The column-rule-style CSS property lets you set the style of the rule drawn between columns in multi-column layouts.
The column-rule-width CSS property lets you set the width of the rule drawn between columns in multi-column layouts.
The column-rule-width CSS property lets you set the width of the rule drawn between columns in multi-column layouts.
The column-span CSS property makes it possible for an element to span across all columns when its value is set to all.
The column-span CSS property makes it possible for an element to span across all columns when its value is set to all. An element that spans more than one column is called a spanning element.
The column-width CSS property suggests an optimal column width.
The column-width CSS property suggests an optimal column width. This is not a absolute value but a mere hint. Browser will adjust the width of the column around that suggested value, allowing to achieve scalable designs that fit different screen size. Especially in presence of the column-count CSS property which has precedence, to set an exact column width, all Length values must be specified. In horizontal text these are width, column-width, column-gap, and column-rule-width
The columns CSS property is a shorthand property allowing to set both the column-width and the column-count properties at the same time.
The columns CSS property is a shorthand property allowing to set both the column-width and the column-count properties at the same time.
A command that the user can invoke.
A command that the user can invoke.
This attribute gives the value associated with the http-equiv or name attribute, depending of the context.
This attribute gives the value associated with the http-equiv or name attribute, depending of the context.
The content CSS property is used with the ::before and ::after pseudo-elements to generate content in an element.
The content CSS property is used with the ::before and ::after pseudo-elements to generate content in an element. Objects inserted using the content property are anonymous replaced elements.
The counter-increment CSS property is used to increase the value of CSS Counters by a given value.
The counter-increment CSS property is used to increase the value of CSS Counters by a given value. The counter's value can be reset using the counter-reset CSS property.
The counter-reset CSS property is used to reset CSS Counters to a given value.
The counter-reset CSS property is used to reset CSS Counters to a given value.
The cursor CSS property specifies the mouse cursor displayed when the mouse pointer is over an element.
The cursor CSS property specifies the mouse cursor displayed when the mouse pointer is over an element.
Associates to its content a machine-readable equivalent.
Associates to its content a machine-readable equivalent.
A set of predefined options for other controls.
A set of predefined options for other controls.
Represents the definition of the terms immediately listed before it.
Represents the definition of the terms immediately listed before it.
Defines a remofinal def from the document.
Defines a remofinal def from the document.
A widget from which the user can obtain additional information or controls.
A widget from which the user can obtain additional information or controls.
Represents a term whose definition is contained in its nearest ancestor content.
Represents a term whose definition is contained in its nearest ancestor content.
Set the direction CSS property to match the direction of the text: rtl for Hebrew or Arabic text and ltr for other scripts.
Set the direction CSS property to match the direction of the text: rtl for Hebrew or Arabic text and ltr for other scripts. This is typically done as part of the document (e.g., using the dir attribute in HTML) rather than through direct use of CSS.
The property sets the base text direction of block-level elements and the direction of embeddings created by the unicode-bidi property. It also sets the default alignment of text and block-level elements and the direction that cells flow within a table row.
Unlike the dir attribute in HTML, the direction property is not inherited from table columns into table cells, since CSS inheritance follows the document tree, and table cells are inside of the rows but not inside of the columns.
The direction and unicode-bidi properties are the two only properties which are not affected by the all shorthand.
This Boolean attribute indicates that the form control is not available for interaction.
This Boolean attribute indicates that the form control is not available for interaction. In particular, the click event will not be dispatched on disabled controls. Also, a disabled control's value isn't submitted with the form.
This attribute is ignored if the value of the type attribute is hidden.
The display CSS property specifies the type of rendering box used for an element.
The display CSS property specifies the type of rendering box used for an element. In HTML, default display property values are taken from behaviors described in the HTML specifications or from the browser/user default stylesheet. The default value in XML is inline.
In addition to the many different display box types, the value none lets you turn off the display of an element; when you use none, all descendant elements also have their display turned off. The document is rendered as though the element doesn't exist in the document tree.
Represents a generic container with no special meaning.
Represents a generic container with no special meaning.
Defines a definition list; a list of terms and their associated definitions.
Defines a definition list; a list of terms and their associated definitions.
Represents a term defined by the next dd
Represents a term defined by the next dd
Represents emphasized text.
Represents emphasized text.
Represents a integration point for an external, often non-HTML, application or interactive content.
Represents a integration point for an external, often non-HTML, application or interactive content.
he empty-cells CSS property specifies how user agents should render borders and backgrounds around cells that have no visible content.
he empty-cells CSS property specifies how user agents should render borders and backgrounds around cells that have no visible content.
A set of fields.
A set of fields.
Represents the legend of a figure.
Represents the legend of a figure.
Represents a figure illustrated as part of the document.
Represents a figure illustrated as part of the document.
The flex CSS property is a shorthand property specifying the ability of a flex item to alter its dimensions to fill available space.
The flex CSS property is a shorthand property specifying the ability of a flex item to alter its dimensions to fill available space. Flex items can be stretched to use available space proportional to their flex grow factor or their flex shrink factor to prevent overflow.
The CSS flex-basis property specifies the flex basis which is the initial main size of a flex item.
The CSS flex-basis property specifies the flex basis which is the initial main size of a flex item. The property determines the size of the content-box unless specified otherwise using box-sizing.
The CSS flex-direction property specifies how flex items are placed in the flex container defining the main axis and the direction (normal or reversed).
The CSS flex-direction property specifies how flex items are placed in the flex container defining the main axis and the direction (normal or reversed).
Note that the value row and row-reverse are affected by the directionality of the flex container. If its dir attribute is ltr, row represents the horizontal axis oriented from the left to the right, and row-reverse from the right to the left; if the dir attribute is rtl, row represents the axis oriented from the right to the left, and row-reverse from the left to the right.
The CSS flex-grow property specifies the flex grow factor of a flex item.
The CSS flex-grow property specifies the flex grow factor of a flex item.
The CSS flex-shrink property specifies the flex shrink factor of a flex item.
The CSS flex-shrink property specifies the flex shrink factor of a flex item.
The CSS flex-wrap property specifies whether the children are forced into a single line or if the items can be flowed on multiple lines.
The CSS flex-wrap property specifies whether the children are forced into a single line or if the items can be flowed on multiple lines.
The float CSS property specifies that an element should be taken from the normal flow and placed along the left or right side of its container, where text and inline elements will wrap around it.
The float CSS property specifies that an element should be taken from the normal flow and placed along the left or right side of its container, where text and inline elements will wrap around it. A floating element is one where the computed value of float is not none.
The font CSS property is either a shorthand property for setting font-style, font-variant, font-weight, font-size, line-height and font-family, or a way to set the element's font to a system font, using specific keywords.
The font CSS property is either a shorthand property for setting font-style, font-variant, font-weight, font-size, line-height and font-family, or a way to set the element's font to a system font, using specific keywords.
The font-family CSS property allows for a prioritized list of font family names and/or generic family names to be specified for the selected element.
The font-family CSS property allows for a prioritized list of font family names and/or generic family names to be specified for the selected element. Unlike most other CSS properties, values are separated by a comma to indicate that they are alternatives. The browser will select the first font on the list that is installed on the computer, or that can be downloaded using the information provided by a @font-face at-rule.
The font-feature-settings CSS property allows control over advanced typographic features in OpenType fonts.
The font-feature-settings CSS property allows control over advanced typographic features in OpenType fonts.
The font-size CSS property specifies the size of the font – specifically the desired height of glyphs from the font.
The font-size CSS property specifies the size of the font – specifically the desired height of glyphs from the font. Setting the font size may, in turn, change the size of other items, since it is used to compute the value of em and ex Length units.
The font-size-adjust CSS property specifies that font size should be chosen based on the height of lowercase letters rather than the height of capital letters.
The font-size-adjust CSS property specifies that font size should be chosen based on the height of lowercase letters rather than the height of capital letters.
This is useful since the legibility of fonts, especially at small sizes, is determined more by the size of lowercase letters than by the size of capital letters. This can cause problems when the first-choice font-family is unavailable and its replacement has a significantly different aspect ratio (the ratio of the size of lowercase letters to the size of the font).
The font-style CSS property allows italic or oblique faces to be selected within a font-family.
The font-style CSS property allows italic or oblique faces to be selected within a font-family.
The font-weight CSS property specifies the weight or boldness of the font.
The font-weight CSS property specifies the weight or boldness of the font. However, some fonts are not available in all weights; some are available only on normal and bold.
Numeric font weights for fonts that provide more than just normal and bold. If the exact weight given is unavailable, then 600-900 use the closest available darker weight (or, if there is none, the closest available lighter weight), and 100-500 use the closest available lighter weight (or, if there is none, the closest available darker weight). This means that for fonts that provide only normal and bold, 100-500 are normal, and 600-900 are bold.
Defines the footer for a page or section.
Defines the footer for a page or section. It often contains a copyright notice, some links to legal information, or addresses to give feedback.
Describes elements which belongs to this one.
Describes elements which belongs to this one. Used on labels and output elements.
Represents a form, consisting of controls, that can be submitted to a server for processing.
Represents a form, consisting of controls, that can be submitted to a server for processing.
Heading level 1
Heading level 1
Heading level 2
Heading level 2
Heading level 3
Heading level 3
Heading level 4
Heading level 4
Heading level 5
Heading level 5
Heading level 6
Heading level 6
Represents a collection of metadata about the document, including links to, or definitions of, scripts and style sheets.
Represents a collection of metadata about the document, including links to, or definitions of, scripts and style sheets.
Defines the header of a page or section.
Defines the header of a page or section. It often contains a logo, the title of the Web site, and a navigational table of content.
The height CSS property specifies the height of the content area of an element.
The height CSS property specifies the height of the content area of an element. The content area is inside the padding, border, and margin of the element.
The min-height and max-height properties override height.
For use in <meter> tags.
For use in <meter> tags.
https://css-tricks.com/html5-meter-element/
Represents a thematic break between paragraphs of a section or article or any longer content.
Represents a thematic break between paragraphs of a section or article or any longer content.
This is the single required attribute for anchors defining a hypertext source link.
This is the single required attribute for anchors defining a hypertext source link. It indicates the link target, either a URL or a URL fragment. A URL fragment is a name preceded by a hash mark (#), which specifies an internal target location (an ID) within the current document. URLs are not restricted to Web (HTTP)-based documents. URLs might use any protocol supported by the browser. For example, file, ftp, and mailto work in most user agents.
Represents the root of an HTML or XHTML document.
Represents the root of an HTML or XHTML document. All other elements must be descendants of this element.
This enumerated attribute defines the pragma that can alter servers and user-agents behavior.
This enumerated attribute defines the pragma that can alter servers and user-agents behavior. The value of the pragma is defined using the content attribute and can be one of the following:
- content-language - content-type - default-style - refresh - set-cookie
Italicized text.
Italicized text.
This attribute defines a unique identifier (ID) which must be unique in the whole document.
This attribute defines a unique identifier (ID) which must be unique in the whole document. Its purpose is to identify the element when linking (using a fragment identifier), scripting, or styling (with CSS).
Represents a nested browsing context, that is an embedded HTML document.
Represents a nested browsing context, that is an embedded HTML document.
Represents an image.
Represents an image.
The HTML element <input> is used to create interactive controls for web-based forms in order to accept data from the user.
The HTML element <input> is used to create interactive controls for web-based forms in order to accept data from the user. How an <input> works varies considerably depending on the value of its type attribute.
The inputmode attribute tells the browser on devices with dynamic keyboards which keyboard to display.
The inputmode attribute tells the browser on devices with dynamic keyboards which keyboard to display. The inputmode attribute applies to the text, search and password input types as well as <textarea>.
Defines an addition to the document.
Defines an addition to the document.
http://www.w3.org/TR/2015/CR-SRI-20151112/#the-integrity-attribute
http://www.w3.org/TR/2015/CR-SRI-20151112/#the-integrity-attribute
The CSS justify-content property defines how a browser distributes available space between and around elements when aligning flex items in the main-axis of the current line.
The CSS justify-content property defines how a browser distributes available space between and around elements when aligning flex items in the main-axis of the current line. The alignment is done after the lengths and auto margins are applied, meaning that, if there is at least one flexible element, with flex-grow different than 0, it will have no effect as there won't be any available space.
Represents user input, often from a keyboard, but not necessarily.
Represents user input, often from a keyboard, but not necessarily.
React key
React key
For use in <keygen>
For use in <keygen>
<keygen>: Specifies the type of key generated.
<keygen>: Specifies the type of key generated.
A key-pair generator control.
A key-pair generator control.
The caption of a single field
The caption of a single field
This attribute participates in defining the language of the element, the language that non-editable elements are written in or the language that editable elements should be written in.
This attribute participates in defining the language of the element, the language that non-editable elements are written in or the language that editable elements should be written in. The tag contains one single entry value in the format defines in the Tags for Identifying Languages (BCP47) IETF document. If the tag content is the empty string the language is set to unknown; if the tag content is not valid, regarding to BCP47, it is set to invalid.
The left CSS property specifies part of the position of positioned elements.
The left CSS property specifies part of the position of positioned elements.
For absolutely positioned elements (those with position: absolute or position: fixed), it specifies the distance between the left margin edge of the element and the left edge of its containing block.
The caption for a fieldset.
The caption for a fieldset.
The letter-spacing CSS property specifies spacing behavior between text characters.
The letter-spacing CSS property specifies spacing behavior between text characters.
Defines an item of an list.
Defines an item of an list.
On block level elements, the line-height CSS property specifies the minimal height of line boxes within the element.
On block level elements, the line-height CSS property specifies the minimal height of line boxes within the element.
On non-replaced inline elements, line-height specifies the height that is used in the calculation of the line box height.
On replaced inline elements, like buttons or other input element, line-height has no effect.
Used to link JavaScript and external CSS with the current HTML document.
Used to link JavaScript and external CSS with the current HTML document.
The list-style CSS property is a shorthand property for setting list-style-type, list-style-image and list-style-position.
The list-style CSS property is a shorthand property for setting list-style-type, list-style-image and list-style-position.
The list-style-image CSS property sets the image that will be used as the list item marker.
The list-style-image CSS property sets the image that will be used as the list item marker. It is often more convenient to use the shorthand list-style.
The list-style-position CSS property specifies the position of the marker box in the principal block box.
The list-style-position CSS property specifies the position of the marker box in the principal block box. It is often more convenient to use the shortcut list-style.
The list-style-type CSS property specifies appearance of a list item element.
The list-style-type CSS property specifies appearance of a list item element. As it is the only one who defaults to display:list-item, this is usually a li element, but can be any element with this display value.
For use in <meter> tags.
For use in <meter> tags.
https://css-tricks.com/html5-meter-element/
Defines the main or important content in the document.
Defines the main or important content in the document. There is only one main element in the document.
In conjunction with area, defines an image map.
In conjunction with area, defines an image map.
The margin CSS property sets the margin for all four sides.
The margin CSS property sets the margin for all four sides. It is a shorthand to avoid setting each side separately with the other margin properties: margin-top, margin-right, margin-bottom and margin-left.
Negative values are also allowed.
The margin-bottom CSS property of an element sets the margin space required on the bottom of an element.
The margin-bottom CSS property of an element sets the margin space required on the bottom of an element. A negative value is also allowed.
The margin-left CSS property of an element sets the margin space required on the left side of a box associated with an element.
The margin-left CSS property of an element sets the margin space required on the left side of a box associated with an element. A negative value is also allowed.
The vertical margins of two adjacent boxes may fuse. This is called margin collapsing.
The margin-right CSS property of an element sets the margin space required on the bottom of an element.
The margin-right CSS property of an element sets the margin space required on the bottom of an element. A negative value is also allowed.
The margin-top CSS property of an element sets the margin space required on the top of an element.
The margin-top CSS property of an element sets the margin space required on the top of an element. A negative value is also allowed.
Represents text highlighted for reference purposes, that is for its relevance in another context.
Represents text highlighted for reference purposes, that is for its relevance in another context.
If the value is a URI value, the element pointed to by the URI is used as an SVG mask.
If the value is a URI value, the element pointed to by the URI is used as an SVG mask.
Defines a mathematical formula.
Defines a mathematical formula.
For use in <meter> tags.
For use in <meter> tags.
https://css-tricks.com/html5-meter-element/
The max-height CSS property is used to set the maximum height of a given element.
The max-height CSS property is used to set the maximum height of a given element. It prevents the used value of the height property from becoming larger than the value specified for max-height.
max-height overrides height, but min-height overrides max-height.
The max-width CSS property is used to set the maximum width of a given element.
The max-width CSS property is used to set the maximum width of a given element. It prevents the used value of the width property from becoming larger than the value specified for max-width.
max-width overrides width, but min-width overrides max-width.
This attribute specifies the media which the linked resource applies to.
This attribute specifies the media which the linked resource applies to. Its value must be a media query. This attribute is mainly useful when linking to external stylesheets by allowing the user agent to pick the best adapted one for the device it runs on.
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link#attr-media
A list of commands
A list of commands
Defines metadata that can't be defined using another HTML element.
Defines metadata that can't be defined using another HTML element.
A scalar measurement within a known range.
A scalar measurement within a known range.
The HTTP method that the browser uses to submit the form.
The HTTP method that the browser uses to submit the form. Possible values are:
- post: Corresponds to the HTTP POST method ; form data are included in the body of the form and sent to the server.
- get: Corresponds to the HTTP GET method; form data are appended to the action attribute URI with a '?' as a separator, and the resulting URI is sent to the server. Use this method when the form has no side-effects and contains only ASCII characters.
This value can be overridden by a formmethod attribute on a button or input element.
For use in <meter> tags.
For use in <meter> tags.
https://css-tricks.com/html5-meter-element/
The min-height CSS property is used to set the minimum height of a given element.
The min-height CSS property is used to set the minimum height of a given element. It prevents the used value of the height property from becoming smaller than the value specified for min-height.
The value of min-height overrides both max-height and height.
The min-width CSS property is used to set the minimum width of a given element.
The min-width CSS property is used to set the minimum width of a given element. It prevents the used value of the width property from becoming smaller than the value specified for min-width.
The value of min-width overrides both max-width and width.
On form elements (input etc.): Name of the element.
On form elements (input etc.): Name of the element. For example used by the server to identify the fields in form submits.
On the meta tag: This attribute defines the name of a document-level metadata. This document-level metadata name is associated with a value, contained by the content attribute.
Represents a section of a page that links to other pages or to parts within the page: a section with navigation links.
Represents a section of a page that links to other pages or to parts within the page: a section with navigation links.
For <script> and <style>elements.
For <script> and <style>elements.
Defines alternative content to display when the browser doesn't support scripting.
Defines alternative content to display when the browser doesn't support scripting.
Represents an external resource, which is treated as an image, an HTML sub-document, or an external resource to be processed by a plug-in.
Represents an external resource, which is treated as an image, an HTML sub-document, or an external resource to be processed by a plug-in.
Defines an ordered list of items.
Defines an ordered list of items.
The blur event is raised when an element loses focus.
The blur event is raised when an element loses focus.
The change event is fired for input, select, and textarea elements when a change to the element's value is committed by the user.
The change event is fired for input, select, and textarea elements when a change to the element's value is committed by the user.
The click event is raised when the user clicks on an element.
The click event is raised when the user clicks on an element. The click event will occur after the mousedown and mouseup events.
React alias for onDoubleClick
React alias for onDoubleClick
The dblclick event is fired when a pointing device button (usually a mouse button) is clicked twice on a single element.
The dblclick event is fired when a pointing device button (usually a mouse button) is clicked twice on a single element.
Type: script code
Type: script code
This event is sent to an image element when an error occurs loading the image.
https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL/image#a-onerror
The focus event is raised when the user sets focus on the given element.
The focus event is raised when the user sets focus on the given element.
The keydown event is raised when the user presses a keyboard key.
The keydown event is raised when the user presses a keyboard key.
The keypress event should be raised when the user presses a key on the keyboard.
The keypress event should be raised when the user presses a key on the keyboard. However, not all browsers fire keypress events for certain keys.
Webkit-based browsers (Google Chrome and Safari, for example) do not fire keypress events on the arrow keys. Firefox does not fire keypress events on modifier keys like SHIFT.
The keyup event is raised when the user releases a key that's been pressed.
The keyup event is raised when the user releases a key that's been pressed.
The load event fires at the end of the document loading process.
The load event fires at the end of the document loading process. At this point, all of the objects in the document are in the DOM, and all the images and sub-frames have finished loading.
The mousedown event is raised when the user presses the mouse button.
The mousedown event is raised when the user presses the mouse button.
The mouseenter event is fired when a pointing device (usually a mouse) is moved over the element that has the listener attached.
The mouseenter event is fired when a pointing device (usually a mouse) is moved over the element that has the listener attached.
The mouseleave event is fired when a pointing device (usually a mouse) is moved off the element that has the listener attached.
The mouseleave event is fired when a pointing device (usually a mouse) is moved off the element that has the listener attached.
The mousemove event is raised when the user moves the mouse.
The mousemove event is raised when the user moves the mouse.
The mouseout event is raised when the mouse leaves an element (e.g, when the mouse moves off of an image in the web page, the mouseout event is raised for that image element).
The mouseout event is raised when the mouse leaves an element (e.g, when the mouse moves off of an image in the web page, the mouseout event is raised for that image element).
The mouseover event is raised when the user moves the mouse over a particular element.
The mouseover event is raised when the user moves the mouse over a particular element.
The mouseup event is raised when the user releases the mouse button.
The mouseup event is raised when the user releases the mouse button.
The reset event is fired when a form is reset.
The reset event is fired when a form is reset.
Specifies the function to be called when the window is scrolled.
Specifies the function to be called when the window is scrolled.
The select event only fires when text inside a text input or textarea is selected.
The select event only fires when text inside a text input or textarea is selected. The event is fired after the text has been selected.
The submit event is raised when the user clicks a submit button in a form ().
The submit event is raised when the user clicks a submit button in a form ().
Event indicating that the touch point has been canceled or disrupted.
Event indicating that the touch point has been canceled or disrupted.
For example, when popup menu is shown.
Event indicating that the touch point does not exist any more.
Event indicating that the touch point does not exist any more.
For example, whn you release your finger.
Event indicating that the touch point has moved along the plane.
Event indicating that the touch point has moved along the plane.
Event indicating that the user has touched the plane.
Event indicating that the user has touched the plane.
The opacity CSS property specifies the transparency of an element, that is, the degree to which the background behind the element is overlaid.
The opacity CSS property specifies the transparency of an element, that is, the degree to which the background behind the element is overlaid.
The value applies to the element as a whole, including its contents, even though the value is not inherited by child elements. Thus, an element and its contained children all have the same opacity relative to the element's background, even if the element and its children have different opacities relative to one another.
Using this property with a value different than 1 places the element in a new stacking context.
A set of options, logically grouped.
A set of options, logically grouped.
For use in <meter> tags.
For use in <meter> tags.
https://css-tricks.com/html5-meter-element/
An option in a select element.
An option in a select element.
The orphans CSS property refers to the minimum number of lines in a block container that must be left at the bottom of the page.
The orphans CSS property refers to the minimum number of lines in a block container that must be left at the bottom of the page. This property is normally used to control how page breaks occur.
The CSS outline property is a shorthand property for setting one or more of the individual outline properties outline-style, outline-width and outline-color in a single rule.
The CSS outline property is a shorthand property for setting one or more of the individual outline properties outline-style, outline-width and outline-color in a single rule. In most cases the use of this shortcut is preferable and more convenient.
Outlines do not take up space, they are drawn above the content.
The outline-color CSS property sets the color of the outline of an element.
The outline-color CSS property sets the color of the outline of an element. An outline is a line that is drawn around elements, outside the border edge, to make the element stand out.
The outline-style CSS property is used to set the style of the outline of an element.
The outline-style CSS property is used to set the style of the outline of an element. An outline is a line that is drawn around elements, outside the border edge, to make the element stand out.
The outline-width CSS property is used to set the width of the outline of an element.
The outline-width CSS property is used to set the width of the outline of an element. An outline is a line that is drawn around elements, outside the border edge, to make the element stand out.
The result of a calculation
The result of a calculation
The overflow CSS property specifies whether to clip content, render scroll bars or display overflow content of a block-level element.
The overflow CSS property specifies whether to clip content, render scroll bars or display overflow content of a block-level element.
The overflow-x CSS property specifies whether to clip content, render a scroll bar or display overflow content of a block-level element, when it overflows at the left and right edges.
The overflow-x CSS property specifies whether to clip content, render a scroll bar or display overflow content of a block-level element, when it overflows at the left and right edges.
The overflow-y CSS property specifies whether to clip content, render a scroll bar, or display overflow content of a block-level element, when it overflows at the top and bottom edges.
The overflow-y CSS property specifies whether to clip content, render a scroll bar, or display overflow content of a block-level element, when it overflows at the top and bottom edges.
Defines a portion that should be displayed as a paragraph.
Defines a portion that should be displayed as a paragraph.
The padding CSS property sets the required padding space on all sides of an element.
The padding CSS property sets the required padding space on all sides of an element. The padding area is the space between the content of the element and its border. Negative values are not allowed.
The padding property is a shorthand to avoid setting each side separately (padding-top, padding-right, padding-bottom, padding-left).
The padding-bottom CSS property of an element sets the height of the padding area at the bottom of an element.
The padding-bottom CSS property of an element sets the height of the padding area at the bottom of an element. The padding area is the space between the content of the element and it's border. Contrary to margin-bottom values, negative values of padding-bottom are invalid.
The padding-left CSS property of an element sets the padding space required on the left side of an element.
The padding-left CSS property of an element sets the padding space required on the left side of an element. The padding area is the space between the content of the element and it's border. A negative value is not allowed.
The padding-right CSS property of an element sets the padding space required on the right side of an element.
The padding-right CSS property of an element sets the padding space required on the right side of an element. The padding area is the space between the content of the element and its border. Negative values are not allowed.
The padding-top CSS property of an element sets the padding space required on the top of an element.
The padding-top CSS property of an element sets the padding space required on the top of an element. The padding area is the space between the content of the element and its border. Contrary to margin-top values, negative values of padding-top are invalid.
The page-break-after CSS property adjusts page breaks after the current element.
The page-break-after CSS property adjusts page breaks after the current element.
The page-break-before CSS property adjusts page breaks before the current element.
The page-break-before CSS property adjusts page breaks before the current element.
This properties applies to block elements that generate a box. It won't apply on an empty div that won't generate a box.
The page-break-inside CSS property adjusts page breaks inside the current element.
The page-break-inside CSS property adjusts page breaks inside the current element.
Defines parameters for use by plug-ins invoked by object elements.
Defines parameters for use by plug-ins invoked by object elements.
The perspective CSS property determines the distance between the z=0 plane and the user in order to give to the 3D-positioned element some perspective.
The perspective CSS property determines the distance between the z=0 plane and the user in order to give to the 3D-positioned element some perspective. Each 3D element with z>0 becomes larger; each 3D-element with z<0 becomes smaller. The strength of the effect is determined by the value of this property.
The perspective-origin CSS property determines the position the viewer is looking at.
The perspective-origin CSS property determines the position the viewer is looking at. It is used as the vanishing point by the perspective property.
A hint to the user of what can be entered in the control.
A hint to the user of what can be entered in the control. The placeholder text must not contain carriage returns or line-feeds. This attribute applies when the value of the type attribute is text, search, tel, url or email; otherwise it is ignored.
The CSS property pointer-events allows authors to control under what circumstances (if any) a particular graphic element can become the target of mouse events.
The CSS property pointer-events allows authors to control under what circumstances (if any) a particular graphic element can become the target of mouse events. When this property is unspecified, the same characteristics of the visiblePainted value apply to SVG content.
In addition to indicating that the element is not the target of mouse events, the value none instructs the mouse event to go "through" the element and target whatever is "underneath" that element instead.
The position CSS property chooses alternative rules for positioning elements, designed to be useful for scripted animation effects.
The position CSS property chooses alternative rules for positioning elements, designed to be useful for scripted animation effects.
Indicates that its content is preformatted and that this format must be preserved.
Indicates that its content is preformatted and that this format must be preserved.
A progress completion bar
A progress completion bar
An inline quotation.
An inline quotation.
This Boolean attribute indicates that the user cannot modify the value of the control.
This Boolean attribute indicates that the user cannot modify the value of the control. This attribute is ignored if the value of the type attribute is hidden, range, color, checkbox, radio, file, or a button type.
This attribute names a relationship of the linked document to the current document.
This attribute names a relationship of the linked document to the current document. The attribute must be a space-separated list of the link types values. The most common use of this attribute is to specify a link to an external style sheet: the rel attribute is set to stylesheet, and the href attribute is set to the URL of an external style sheet to format the page.
This attribute specifies that the user must fill in a value before submitting a form.
This attribute specifies that the user must fill in a value before submitting a form. It cannot be used when the type attribute is hidden, image, or a button type (submit, reset, or button). The :optional and :required CSS pseudo-classes will be applied to the field as appropriate.
For <ol> elements.
For <ol> elements.
The right CSS property specifies part of the position of positioned elements.
The right CSS property specifies part of the position of positioned elements.
For absolutely positioned elements (those with position: absolute or position: fixed), it specifies the distance between the right margin edge of the element and the right edge of its containing block.
The right property has no effect on non-positioned elements.
When both the right CSS property and the left CSS property are defined, the position of the element is overspecified. In that case, the left value has precedence when the container is left-to-right (that is that the right computed value is set to -left), and the right value has precedence when the container is right-to-left (that is that the left computed value is set to -right).
The attribute describes the role(s) the current element plays in the context of the document.
The attribute describes the role(s) the current element plays in the context of the document. This can be used, for example, by applications and assistive technologies to determine the purpose of an element. This could allow a user to make informed decisions on which actions may be taken on an element and activate the selected action in a device independent way. It could also be used as a mechanism for annotating portions of a document in a domain specific way (e.g., a legal term taxonomy). Although the role attribute may be used to add semantics to an element, authors should use elements with inherent semantics, such as p, rather than layering semantics on semantically neutral elements, such as div role="paragraph".
http://www.w3.org/TR/role-attribute/#s_role_module_attributes
The number of visible text lines for the control.
The number of visible text lines for the control.
Represents parenthesis around a ruby annotation, used to display the annotation in an alternate way by browsers not supporting the standard display for annotations.
Represents parenthesis around a ruby annotation, used to display the annotation in an alternate way by browsers not supporting the standard display for annotations.
Represents the text of a ruby annotation.
Represents the text of a ruby annotation.
Represents content to be marked with ruby annotations, short runs of text presented alongside the text.
Represents content to be marked with ruby annotations, short runs of text presented alongside the text. This is often used in conjunction with East Asian language where the annotations act as a guide for pronunciation, like the Japanese furigana .
Strikethrough element, used for that is no longer accurate or relevant.
Strikethrough element, used for that is no longer accurate or relevant.
Represents the output of a program or a computer.
Represents the output of a program or a computer.
For use in <style> tags.
For use in <style> tags.
If this attribute is present, then the style applies only to its parent element. If absent, the style applies to the whole document.
Defines either an internal script or a link to an external script.
Defines either an internal script or a link to an external script. The script language is JavaScript.
Represents a generic section of a document, i.e., a thematic grouping of content, typically with a heading.
Represents a generic section of a document, i.e., a thematic grouping of content, typically with a heading.
A control that allows the user to select one of a set of options.
A control that allows the user to select one of a set of options.
The initial size of the control.
The initial size of the control. This value is in pixels unless the value of the type attribute is text or password, in which case, it is an integer number of characters. Starting in HTML5, this attribute applies only when the type attribute is set to text, search, tel, url, email, or password; otherwise it is ignored. In addition, the size must be greater than zero. If you don't specify a size, a default value of 20 is used.
Represents a side comment; text like a disclaimer or copyright, which is not essential to the comprehension of the document.
Represents a side comment; text like a disclaimer or copyright, which is not essential to the comprehension of the document.
Allows the authors to specify alternate media resources for media elements like video or audio
Allows the authors to specify alternate media resources for media elements like video or audio
Represents text with no specific meaning.
Represents text with no specific meaning. This has to be used when no other text-semantic element conveys an adequate meaning, which, in this case, is often brought by global attributes like class, lang, or dir.
This enumerated attribute defines whether the element may be checked for spelling errors.
This enumerated attribute defines whether the element may be checked for spelling errors.
If the value of the type attribute is image, this attribute specifies a URI for the location of an image to display on the graphical submit button; otherwise it is ignored.
If the value of the type attribute is image, this attribute specifies a URI for the location of an image to display on the graphical submit button; otherwise it is ignored.
Represents especially important text.
Represents especially important text.
This attribute contains CSS styling declarations to be applied to the element.
This attribute contains CSS styling declarations to be applied to the element. Note that it is recommended for styles to be defined in a separate file or files. This attribute and the style element have mainly the purpose of allowing for quick styling, for example for testing purposes.
Used to write inline CSS.
Used to write inline CSS.
Subscript tag
Subscript tag
A summary, caption, or legend for a given details.
A summary, caption, or legend for a given details.
The value is actually just summary.
Superscript tag.
Superscript tag.
This integer attribute indicates if the element can take input focus (is focusable), if it should participate to sequential keyboard navigation, and if so, at what position.
This integer attribute indicates if the element can take input focus (is focusable), if it should participate to sequential keyboard navigation, and if so, at what position. It can takes several values:
- a negative value means that the element should be focusable, but should not be reachable via sequential keyboard navigation; - 0 means that the element should be focusable and reachable via sequential keyboard navigation, but its relative order is defined by the platform convention; - a positive value which means should be focusable and reachable via sequential keyboard navigation; its relative order is defined by the value of the attribute: the sequential follow the increasing number of the tabIndex. If several elements share the same tabIndex, their relative order follows their relative position in the document).
An element with a 0 value, an invalid value, or no tabIndex value should be placed after elements with a positive tabIndex in the sequential keyboard navigation order.
Represents data with more than one dimension.
Represents data with more than one dimension.
A name or keyword indicating where to display the response that is received after submitting the form.
A name or keyword indicating where to display the response that is received after submitting the form. In HTML 4, this is the name of, or a keyword for, a frame. In HTML5, it is a name of, or keyword for, a browsing context (for example, tab, window, or inline frame). The following keywords have special meanings:
- _self: Load the response into the same HTML 4 frame (or HTML5 browsing context) as the current one. This value is the default if the attribute is not specified. - _blank: Load the response into a new unnamed HTML 4 window or HTML5 browsing context. - _parent: Load the response into the HTML 4 frameset parent of the current frame or HTML5 parent browsing context of the current one. If there is no parent, this option behaves the same way as _self. - _top: HTML 4: Load the response into the full, original window, canceling all other frames. HTML5: Load the response into the top-level browsing context (that is, the browsing context that is an ancestor of the current one, and has no parent). If there is no parent, this option behaves the same way as _self. - iframename: The response is displayed in a named iframe.
The table body.
The table body.
A single cell in a table.
A single cell in a table.
The text-align CSS property describes how inline content like text is aligned in its parent block element.
The text-align CSS property describes how inline content like text is aligned in its parent block element. text-align does not control the alignment of block elements itself, only their inline content.
The text-align-last CSS property describes how the last line of a block or a line, right before a forced line break, is aligned.
The text-align-last CSS property describes how the last line of a block or a line, right before a forced line break, is aligned.
The text-decoration CSS property is used to set the text formatting to underline, overline, line-through or blink.
The text-decoration CSS property is used to set the text formatting to underline, overline, line-through or blink.
The text-indent CSS property specifies how much horizontal space should be left before the beginning of the first line of the text content of an element.
The text-indent CSS property specifies how much horizontal space should be left before the beginning of the first line of the text content of an element. Horizontal spacing is with respect to the left (or right, for right-to-left layout) edge of the containing block element's box.
The text-overflow CSS property determines how overflowed content that is not displayed is signaled to the users.
The text-overflow CSS property determines how overflowed content that is not displayed is signaled to the users. It can be clipped, or display an ellipsis ('…', U+2026 HORIZONTAL ELLIPSIS) or a Web author-defined string.
The text-shadow CSS property adds shadows to text.
The text-shadow CSS property adds shadows to text. It accepts a comma-separated list of shadows to be applied to the text and text-decorations of the element.
Each shadow is specified as an offset from the text, along with optional color and blur radius values.
Multiple shadows are applied front-to-back, with the first-specified shadow on top.
The text-transform CSS property specifies how to capitalize an element's text.
The text-transform CSS property specifies how to capitalize an element's text. It can be used to make text appear in all-uppercase or all-lowercase, or with each word capitalized.
The CSS text-underline-position property specifies the position of the underline which is set using the text-decoration property underline value.
The CSS text-underline-position property specifies the position of the underline which is set using the text-decoration property underline value.
This property inherits and is not reset by the text-decoration shorthand, allowing to easily set it globally for a given document.
A multiline text edit control.
A multiline text edit control.
The table footer.
The table footer.
A header cell in a table.
A header cell in a table.
The table headers.
The table headers.
Represents a date and time value; the machine-readable equivalent can be represented in the datetime attribetu
Represents a date and time value; the machine-readable equivalent can be represented in the datetime attribetu
This attribute contains a text representing advisory information related to the element it belongs too.
This attribute contains a text representing advisory information related to the element it belongs too. Such information can typically, but not necessarily, be presented to the user as a tooltip.
Defines the title of the document, shown in a browser's title bar or on the page's tab.
Defines the title of the document, shown in a browser's title bar or on the page's tab. It can only contain text and any contained tags are not interpreted.
The top CSS property specifies part of the position of positioned elements.
The top CSS property specifies part of the position of positioned elements. It has no effect on non-positioned elements.
For absolutely positioned elements (those with position: absolute or position: fixed), it specifies the distance between the top margin edge of the element and the top edge of its containing block.
For relatively positioned elements (those with position: relative), it specifies the amount the element is moved below its normal position.
When both top and bottom are specified, the element position is over-constrained and the top property has precedence: the computed value of bottom is set to -top, while its specified value is ignored.
Shorthand for the type attribute
Shorthand for the type attribute
A single row in a table.
A single row in a table.
Allows authors to specify timed text track for media elements like video or audio
Allows authors to specify timed text track for media elements like video or audio
The CSS transform property lets you modify the coordinate space of the CSS visual formatting model.
The CSS transform property lets you modify the coordinate space of the CSS visual formatting model. Using it, elements can be translated, rotated, scaled, and skewed according to the values set.
If the property has a value different than none, a stacking context will be created. In that case the object will act as a containing block for position: fixed elements that it contains.
The transform-origin CSS property lets you modify the origin for transformations of an element.
The transform-origin CSS property lets you modify the origin for transformations of an element. For example, the transform-origin of the rotate() function is the centre of rotation. (This property is applied by first translating the element by the negated value of the property, then applying the element's transform, then translating by the property value.)
Not explicitely set values are reset to their corresponding values.
The transform-style CSS property determines if the children of the element are positioned in the 3D-space or are flattened in the plane of the element.
The transform-style CSS property determines if the children of the element are positioned in the 3D-space or are flattened in the plane of the element.
The CSS transition property is a shorthand property for transition-property, transition-duration, transition-timing-function, and transition-delay.
The CSS transition property is a shorthand property for transition-property, transition-duration, transition-timing-function, and transition-delay. It allows to define the transition between two states of an element. Different states may be defined using pseudo-classes like :hover or :active or dynamically set using JavaScript.
The transition-delay CSS property specifies the amount of time to wait between a change being requested to a property that is to be transitioned and the start of the transition effect.
The transition-delay CSS property specifies the amount of time to wait between a change being requested to a property that is to be transitioned and the start of the transition effect.
A value of 0s, or 0ms, indicates that the property will begin to animate its transition immediately when the value changes; positive values will delay the start of the transition effect for the corresponding number of seconds. Negative values cause the transition to begin immediately, but to cause the transition to seem to begin partway through the animation effect.
You may specify multiple delays; each delay will be applied to the corresponding property as specified by the transition-property property, which acts as a master list. If there are fewer delays specified than in the master list, missing values are set to the initial value (0s). If there are more delays, the list is simply truncated to the right size. In both case the CSS declaration stays valid.
The transition-duration CSS property specifies the number of seconds or milliseconds a transition animation should take to complete.
The transition-duration CSS property specifies the number of seconds or milliseconds a transition animation should take to complete. By default, the value is 0s, meaning that no animation will occur.
You may specify multiple durations; each duration will be applied to the corresponding property as specified by the transition-property property, which acts as a master list. If there are fewer durations specified than in the master list, the user agent repeat the list of durations. If there are more durations, the list is simply truncated to the right size. In both case the CSS declaration stays valid.
The transition-property CSS property is used to specify the names of CSS properties to which a transition effect should be applied.
The transition-property CSS property is used to specify the names of CSS properties to which a transition effect should be applied.
The CSS transition-timing-function property is used to describe how the intermediate values of the CSS properties being affected by a transition effect are calculated.
The CSS transition-timing-function property is used to describe how the intermediate values of the CSS properties being affected by a transition effect are calculated. This in essence lets you establish an acceleration curve, so that the speed of the transition can vary over its duration.
This attribute is used to define the type of the content linked to.
This attribute is used to define the type of the content linked to. The value of the attribute should be a MIME type such as text/html, text/css, and so on. The common use of this attribute is to define the type of style sheet linked and the most common current value is text/css, which indicates a Cascading Style Sheet format. You can use tpe as an alias for this attribute so you don't have to backtick-escape this attribute.
Underlined text.
Underlined text.
Defines an unordered list of items.
Defines an unordered list of items.
The unicode-bidi CSS property together with the direction property relates to the handling of bidirectional text in a document.
The unicode-bidi CSS property together with the direction property relates to the handling of bidirectional text in a document. For example, if a block of text contains both left-to-right and right-to-left text then the user-agent uses a complex Unicode algorithm to decide how to display the text. This property overrides this algorithm and allows the developer to control the text embedding.
IE-specific property to prevent user selection
IE-specific property to prevent user selection
The initial value of the control.
The initial value of the control. This attribute is optional except when the value of the type attribute is radio or checkbox.
Represents a variable.
Represents a variable.
The vertical-align CSS property specifies the vertical alignment of an inline or table-cell box.
The vertical-align CSS property specifies the vertical alignment of an inline or table-cell box.
Represents a video, and its associated audio files and captions, with the necessary interface to play it.
Represents a video, and its associated audio files and captions, with the necessary interface to play it.
Represents a line break opportunity, that is a suggested point for wrapping text in order to improve readability of text split on several lines.
Represents a line break opportunity, that is a suggested point for wrapping text in order to improve readability of text split on several lines.
The white-space CSS property is used to to describe how whitespace inside the element is handled.
The white-space CSS property is used to to describe how whitespace inside the element is handled.
The widows CSS property defines how many minimum lines must be left on top of a new page, on a paged media.
The widows CSS property defines how many minimum lines must be left on top of a new page, on a paged media. In typography, a widow is the last line of a paragraph appearing alone at the top of a page. Setting the widows property allows to prevent widows to be left.
On a non-paged media, like screen, the widows CSS property has no effect.
The width CSS property specifies the width of the content area of an element.
The width CSS property specifies the width of the content area of an element. The content area is inside the padding, border, and margin of the element.
The min-width and max-width properties override width.
The word-break CSS property is used to specify how (or if) to break lines within words.
The word-break CSS property is used to specify how (or if) to break lines within words.
The word-spacing CSS property specifies spacing behavior between tags and words.
The word-spacing CSS property specifies spacing behavior between tags and words.
<textarea>: Indicates whether the text should be wrapped.
<textarea>: Indicates whether the text should be wrapped.
The z-index CSS property specifies the z-order of an element and its descendants.
The z-index CSS property specifies the z-order of an element and its descendants. When elements overlap, z-order determines which one covers the other. An element with a larger z-index generally covers an element with a lower one.
