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.
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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.
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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.
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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"
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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).
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Declares the character encoding of the page or script.
Declares the character encoding of the page or script. Used on meta and script elements.
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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.
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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).
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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.
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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.
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Describes elements which belongs to this one.
Describes elements which belongs to this one. Used on labels and output elements.
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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.
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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:
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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).
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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.
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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
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.
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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.
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The blur event is raised when an element loses focus.
The blur event is raised when an element loses focus.
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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.
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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.
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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.
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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.
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The keydown event is raised when the user presses a keyboard key.
The keydown event is raised when the user presses a keyboard key.
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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.
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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.
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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.
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The mousedown event is raised when the user presses the mouse button.
The mousedown event is raised when the user presses the mouse button.
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The mousemove event is raised when the user moves the mouse.
The mousemove event is raised when the user moves the mouse.
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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).
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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.
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The mouseup event is raised when the user releases the mouse button.
The mouseup event is raised when the user releases the mouse button.
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The reset event is fired when a form is reset.
The reset event is fired when a form is reset.
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Specifies the function to be called when the window is scrolled.
Specifies the function to be called when the window is scrolled.
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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.
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The submit event is raised when the user clicks a submit button in a form (). MDN
The submit event is raised when the user clicks a submit button in a form (). MDN
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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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.
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.
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Shorthand for the type
attribute
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.
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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.
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