HTML <col> Tag
Example
col elements that specify different alignment for the three columns in the table:<table border="1">
<col align="left" />
<col align="left" />
<col align="right" />
<tr>
<th>ISBN</th>
<th>Title</th>
<th>Price</th>
</tr>
<tr>
<td>3476896</td>
<td>My first HTML</td>
<td>$53</td>
</tr>
<tr>
<td>2489604</td>
<td>My first CSS</td>
<td>$47</td>
</tr>
</table>Definition and Usage
The <col> tag defines attribute values for one or more columns in a table.
The <col> tag is useful for applying styles to entire columns, instead of repeating the styles for each cell, for each row.
The <col> tag can only be used inside a table or a colgroup element.
Browser Support
The
<col> tag is supported in all major browsers
Note: Only the width attribute works in Firefox (none of the other attributes).
Differences Between HTML and XHTML
In HTML the <col> tag has no end tag.
In XHTML the <col> tag must be properly closed.
Tips and Notes
Tips: Add the class attribute to the <col> tag, and let CSS take care of alignment, widths, colors, etc.!
Also have a look at the <colgroup> tag.
Optional Attributes
DTD indicates in which HTML 4.01/XHTML 1.0 DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.
| Attribute | Value | Description | DTD |
|---|---|---|---|
| align | left right center justify char | Specifies the alignment of the content related to a col element | STF |
| char | character | Specifies the alignment of the content related to a col element to a character | STF |
| charoff | number | Specifies the number of characters the content will be aligned from the character specified by the char attribute | STF |
| span | number | Specifies the number of columns a col element should span | STF |
| valign | top middle bottom baseline | Specifies the vertical alignment of the content related to a col element | STF |
| width | % pixels relative_length | Specifies the width of a col element | STF |
Standard Attributes
Тег<col> поддерживает следующие стандартные атрибуты:| Attribute | Value | Description | DTD |
|---|---|---|---|
| class | classname | Specifies a classname for an element | STF |
| dir | rtl ltr | Specifies the text direction for the content in an element | STF |
| id | id | Specifies a unique id for an element | STF |
| lang | language_code | Specifies a language code for the content in an element | STF |
| style | style_definition | Specifies an inline style for an element | STF |
| title | text | Specifies extra information about an element | STF |
| xml:lang | language_code | Specifies a language code for the content in an element, in XHTML documents | STF |
More information about Standard Attributes.
Event Attributes
The<col> tag supports the following event attributes:| Attribute | Value | Description | DTD |
|---|---|---|---|
| onclick | script | Script to be run on a mouse click | STF |
| ondblclick | script | Script to be run on a mouse double-click | STF |
| onmousedown | script | Script to be run when mouse button is pressed | STF |
| onmousemove | script | Script to be run when mouse pointer moves | STF |
| onmouseout | script | Script to be run when mouse pointer moves out of an element | STF |
| onmouseover | script | Script to be run when mouse pointer moves over an element | STF |
| onmouseup | script | Script to be run when mouse button is released | STF |
| onkeydown | script | Script to be run when a key is pressed | STF |
| onkeypress | script | Script to be run when a key is pressed and released | STF |
| onkeyup | script | Script to be run when a key is released | STF |
More information about Event Attributes.
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