th – table header cell

Permitted contents #

flow content

Permitted attributes #

global attributes & scope & colspan & rowspan & headers & common.attrs.aria.implicit.th

ⓘ global attributes: Any attributes permitted globally.
ⓘ scope = d:string "row" or d:string "col" or d:string "rowgroup" or d:string "colgroup" #: Specifies what set of cells the th element applies to.
ⓘ colspan = positive integer #: Specifies the number of adjacent columns “spanned” by its th element.
ⓘ rowspan = non-negative integer #: Specifies the number of following rows “spanned” by its th element.
ⓘ headers = list of ID references #: Identifies one or more th elements that apply to its th.; An unordered set of unique space-separated tokens, each of which is an ID reference.
th = #: (detailed attribute description to come)

Additional constraints and admonitions #

The “scope” attribute on the “td” element is obsolete. Use the “scope” attribute on a “th” element instead.
The “abbr” attribute on the “th” element is obsolete. Consider instead beginning the cell contents with concise text, followed by further elaboration if needed.
The “axis” attribute on the “th” element is obsolete. Use the “scope” attribute instead.
The “align” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “width” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “char” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “charoff” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “valign” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “bgcolor” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “height” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “nowrap” attribute on the “th” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes

Tag omission #

A th element must have a start tag.

A th element’s end tag may be omitted if the th element is immediately followed by a td or th element, or if there is no more content in the parent element.

Permitted parent elements #

tr

DOM interface #

interface HTMLTableHeaderCellElement : HTMLTableCellElement {
           attribute DOMString scope;
};

Typical default display properties #

th {

display: table-cell;

vertical-align: inherit; }

th {

font-weight: bold;

text-align: center; }

HTML 5: The Markup Language (ARIA Edition)

ⓘ th – table header cell # T