Denotes a table header cell.

HTML Syntax

<th
   align = center | left | right
   background = url
   bgcolor = color
   bordercolor = color
   bordercolordark = color
   bordercolorlight = color
   class = classname
   colspan = n
   id = value
   nowrap
   rowspan = n
   style = css_style_rules
   title = text
   valign = baseline | bottom | center | middle | top
>

The TH element specifies a table cell whose contents are used for column or row headings. TH elements can only be used inside table rows, or within a TR element.

Browsers usually display the content of TH elements centered within the cell, and in a bolder font than those of regular table cells.

Although the W3C specifies that TH end tags are optional and may be omitted, it is safer to always close table headers, as not all browsers support this recommendation, and may produce unexpected results.

A <th> element’s end tag can 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.

The following shows how the th element may be used.

<table>
   <tr><th>This is the header row.</th></tr>
   <tr><td>This is the first row.</td></tr>
   <tr><td>This is the second row.</td></tr>
</table>

TABLE, TD, TR, Using Tables