This attribute contains a short abbreviated description of the content of the cell.
This attribute contains a short abbreviated description of the content of the cell. Some user-agent, like speech reader, may present it before the content itself.
Note: Do not use this attribute as it is obsolete in the latest standard: instead either consider starting the cell content by an independent abbreviated content itself or use the abbreviated content as the cell content and use the long content as the description of the cell by putting it in the title attribute.
Provides a hint for generating a keyboard shortcut for the current element.
Provides a hint for generating a keyboard shortcut for the current element. This attribute consists of a space-separated list of characters. The browser should use the first one that exists on the computer keyboard layout.
This enumerated attribute specifies how horizontal alignment of each cell content will be handled.
This enumerated attribute specifies how horizontal alignment of each cell content will be handled. Possible values are:
left
, aligning the content to the left of the cellcenter
, centering the content in the cellright
, aligning the content to the right of the celljustify
, inserting spaces into the textual content so that the content is justified in the cellchar
, aligning the textual content on a special character with a minimal offset, defined by the char
and charoff
attributes Unimplemented (see bug 2212).If this attribute is not set, the left
value is assumed.
Note: Do not use this attribute as it is obsolete (not supported) in the latest standard.
left
, center
, right
or justify
values, use the CSS text-align
property on it.char
value, in CSS3, you can use the value of the char
as the value of the text-align
property Unimplemented.This attribute contains a list of space-separated strings.
This attribute contains a list of space-separated strings. Each string is the id of a group of cells that this header apply to.
Note: Do not use this attribute as it is obsolete in the latest standard: instead use the
scope
attribute.
This attribute defines the background color of each cell of the column.
This attribute defines the background color of each cell of the column. It is one of the 6-digit hexadecimal code as defined in sRGB, prefixed by a '#'. One of the sixteen predefined color strings may be used:
black = "#000000" |
green = "#008000" |
||
silver = "#C0C0C0" |
lime = "#00FF00" |
||
gray = "#808080" |
olive = "#808000" |
||
white = "#FFFFFF" |
yellow = "#FFFF00" |
||
maroon = "#800000" |
navy = "#000080" |
||
red = "#FF0000" |
blue = "#0000FF" |
||
purple = "#800080" |
teal = "#008080" |
||
fuchsia = "#FF00FF" |
aqua = "#00FFFF" |
Usage note: Do not use this attribute, as it is non-standard and only implemented some versions of Microsoft Internet Explorer: the
<th>
element should be styled using
CSS. To give a similar effect to the
bgcolor attribute, use the
CSS property
background-color
instead.
This attribute is used to set the character to align the cells in a column on.
This attribute is used to set the character to align the cells in a column on. Typical values for this include a period (.) when attempting to align numbers or monetary values. If
align
is not set to
char
, this attribute is ignored.
Note: Do not use this attribute as it is obsolete (and not supported) in the latest standard. To achieve the same effect as the
char
, in CSS3, you can use the character set using the
char
attribute as the value of the
text-align
property
Unimplemented.
This attribute is used to indicate the number of characters to offset the column data from the alignment characters specified by the char attribute.
This attribute is used to indicate the number of characters to offset the column data from the alignment characters specified by the char attribute.
Note: Do not use this attribute as it is obsolete (and not supported) in the latest standard.
Is a space-separated list of the classes of the element.
Is a space-separated list of the classes of the element. Classes allows CSS and JavaScript to select and access specific elements via the
class selectors or functions like the method
Document.getElementsByClassName()
.
This attribute contains a non-negative integer value that indicates on how many columns does the cell extend.
This attribute contains a non-negative integer value that indicates on how many columns does the cell extend. Its default value is
1
; if its value is set to
0
, it does extend until the end of the
<colgroup>
, eventually implicitly defined, the cell belongs to. Values higher than 1000 are clipped down to 1000.
Is an enumerated attribute indicating if the element should be editable by the user.
Is an enumerated attribute indicating if the element should be editable by the user. If so, the browser modifies its widget to allow editing. The attribute must take one of the following values:
true
or the empty string, which indicates that the element must be editable;false
, which indicates that the element must not be editable.Is the
id
of an
<menu>
to use as the contextual menu for this element.
Is an enumerated attribute indicating the directionality of the element's text.
Is an enumerated attribute indicating the directionality of the element's text. It can have the following values:
ltr
, which means left to right and is to be used for languages that are written from the left to the right (like English);rtl
, which means right to left and is to be used for languages that are written from the right to the left (like Arabic);auto
, which let the user agent decides. It uses a basic algorithm as it parses the characters inside the element until it finds a character with a strong directionality, then apply that directionality to the whole element.Is an enumerated attribute indicating whether the element can be dragged, using the Drag and Drop API.
Is an enumerated attribute indicating whether the element can be dragged, using the Drag and Drop API. It can have the following values:
true
, which indicates that the element may be draggedfalse
, which indicates that the element may not be dragged.Is an enumerated attribute indicating what types of content can be dropped on an element, using the Drag and Drop API.
Is an enumerated attribute indicating what types of content can be dropped on an element, using the Drag and Drop API. It can have the following values:
copy
, which indicates that dropping will create a copy of the element that was draggedmove
, which indicates that the element that was dragged will be moved to this new location.link
, will create a link to the dragged data.This attributes a list of space-separated strings, each corresponding to the
id attribute of the
<th>
elements that applies to this element.
This attributes a list of space-separated strings, each corresponding to the
id attribute of the
<th>
elements that applies to this element.
Is a Boolean attribute indicates that the element is not yet, or is no longer, relevant.
Is a Boolean attribute indicates that the element is not yet, or is no longer, relevant. For example, it can be used to hide elements of the page that can't be used until the login process has been completed. The browser won't render such elements. This attribute must not be used to hide content that could legitimately be shown.
Defines a unique identifier (ID) which must be unique in the whole document.
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).
These attributes are related to the WHATWG HTML Microdata feature.
These attributes are related to the WHATWG HTML Microdata feature.
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.
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. xml:lang has priority over it.
This attribute contains a non-negative integer value that indicates on how many rows does the cell extend.
This attribute contains a non-negative integer value that indicates on how many rows does the cell extend. Its default value is
1
; if its value is set to
0
, it does extend until the end of the table section (
<thead>
,
<tbody>
,
<tfoot>
, eventually implicitly defined) the cell belongs to. Values higher than 65534 are clipped down to 65534.
This enumerated attribute defines the cells that the header defined in this
<th>
element relates to.
This enumerated attribute defines the cells that the header defined in this
<th>
element relates to. It may have the following values:
row
, which means that the header relates to all cells in the row that this element belongs to;col
, which means that the header relates to all cells in the column that this element belongs to;rowgroup
, which means that the header relates to all remaining cells in the row group that this element belongs to. The remaining cells are either those to the right of this element, or to his left depending of the value ofdir
attribute defined on the <table>
element;colgroup
, which means that the header relates to all remaining cells in the column group that this element belongs to;Is an enumerated attribute defines whether the element may be checked for spelling errors.
Is an enumerated attribute defines whether the element may be checked for spelling errors. It may have the following values:
true
, which indicates that the element should be, if possible, checked for spelling errors;false
, which indicates that the element should not be checked for spelling errors.Contains CSS styling declarations to be applied to the element.
Is an 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.
Is an 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:
0
means that the element should be focusable and reachable via sequential keyboard navigation, but its relative order is defined by the platform convention;Contains a text representing advisory information related to the element it belongs to.
Contains a text representing advisory information related to the element it belongs to. Such information can typically, but not necessarily, be presented to the user as a tooltip.
Is an enumerated attribute that is used to specify whether an element's attribute values and the values of it
s
Text
node children are to be translated when the page is localized, or whether to leave them unchanged.
Is an enumerated attribute that is used to specify whether an element's attribute values and the values of it
s
Text
node children are to be translated when the page is localized, or whether to leave them unchanged. It can have the following values:
"yes"
, which indicates that the element will be translated."no
", which indicates that the element will not be translated.This attribute specifies the vertical alignment of the text within each row of cells of the table header.
This attribute specifies the vertical alignment of the text within each row of cells of the table header. Possible values for this attribute are:
baseline
, which will put the text as close to the bottom of the cell as it is possible, but align it on the baseline of the characters instead of the bottom of them. If characters are all of the size, this has the same effect as bottom
.bottom
, which will put the text as close to the bottom of the cell as it is possible;middle
, which will center the text in the cell;top
, which will put the text as close to the top of the cell as it is possible. Note: Do not use this attribute as it is obsolete (and not supported) in the latest standard: instead set the CSS
vertical-align
property on it.
This attribute is used to define a recommended cell width.
This attribute is used to define a recommended cell width. Properties
cellspacing and
cellpadding may add additional space, and element
<col>
width may also have some effect. In general, if a column's width is too narrow to show a particular cell properly, it, and thus the cells in it, may be widened when displayed.
Note: Do not use this attribute in the latest standard: instead set the CSS
width
property.
The HTML Table Header Cell Element (
<th>
) defines a cell that is a header for a group of cells of a table. The group of cells that the header refers to is defined by thescope
andheaders
attribute.