HTML th tag

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# HTML <th> tag

## Example

A simple HTML table, containing two columns and two rows:

<table border="1">
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
<tr>
<td>January</td>
<td>$100</td>
</tr>
</table>

Try it yourself! (more examples at the bottom of this page)

## Definition and Usage

The <th> tag defines a header cell in an HTML table.

An HTML table has two kinds of cells:

- Header cells - contains header information (created with the th element)
- Standard cells - contains data (created with the td element)

The text in a th element is bold and centered.

The text in a td element is regular and left-aligned.

## Browser Support

The <th> tag is supported in all major browsers.

## Differences Between HTML and XHTML

The "bgcolor", "height", "width", and "nowrap" attributes of the th element were deprecated in HTML 4.01, and are not supported in XHTML 1.0 Strict DTD.

## Tips and Notes

Tip: Use the colspan and rowspan attributes to let the content span over multiple columns or rows!

## Optional Attributes

DTD indicates in which DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.

Attribute | Value | Description | DTD
--- | --- | --- | ---
abbr | text | Specifies an abbreviated version of the content in a cell | STF
align | left right center justify char | Aligns the content in a cell | STF
axis | category_name | Categorizes cells | STF
bgcolor | rgb(x,x,x) #xxxxxx colorname | Deprecated. Use styles instead. Specifies a background color for a cell | TF
char | character | Aligns the content in a cell to a character | STF
charoff | pixels % | Sets the number of characters the content will be aligned from the character specified by the char attribute | STF
colspan | number | Sets the number of columns a cell should span | STF
height | pixels % | Deprecated. Use styles instead. Sets the height of a cell | TF
nowrap | nowrap | Deprecated. Use styles instead. Specifies that the content inside a cell should not wrap | TF
rowspan | number | Sets the number of rows a cell should span | STF
scope | col colgroup row rowgroup | Defines a way to associate header cells and data cells in a table | STF
valign | top middle bottom baseline | Vertical aligns the content in a cell | STF
width | pixels % | Deprecated. Use styles instead. Specifies the width of a cell | TF

## Standard Attributes

id, class, title, style, dir, lang, xml:lang

For a full description, go to Standard Attributes.

## Event Attributes

onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup

For a full description, go to Event Attributes.

## Try-It-Yourself Demos

Tables
How to create simple HTML tables.

Table borders
HTML tables with different borders.

Table headers
How to create table headers.

Empty cells
How to use "&nbsp;" to handle cells that have no content.

Table cells that span more than one row/column
How to define table cells that span more than one row or one column.

Tags inside a table
How to display elements inside other elements.

Add a background color and a background image to a table cell
How to add a background to a table cell.

Align the content in a table cell
How to use the "align" attribute to align the content of cells.

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