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HTML <th> tag
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Function:
The HTML &ld;th> tag is used for specifying a header cell or table header within a table.
Difference between HTML and XHTML:
The bgcolor, height, width, nowrap attributes are deprecated in HTML as well in XHTML.
Example:
<table width="100%" border = "1">
<tr>
<th>Tag</th>
<th>Description</th>
</tr>
<tr>
<td>th</td>
<td>Specifies a table header</td>
</tr>
</table>
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This will produce following result:
| Tag |
Description |
| th |
Specifies a table header |
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To Become more comfortable - Do Online Practice
Attributes:
| Attribute | Value | Description |
|---|
| abbr | abbreviated_text | Specifies an abbreviated version of the content in a cell. |
| align | right
left
center
justify
char | Visual alignment. |
| axis | name | Specifies a category for this td. This can potentially be used to perform queries against the table data and can be beneficial in the context of a speech browser. |
| bgcolor | rgb(x,x,x)
#hexcode
colorname | Deprecated - Specifies the background color of the table cell. |
| char | character | Specifies which character to align text on. Used when align="char" |
| charoff | pixels or % | Specifies an alignment offset (either in pixels or percentage value) against the first character as specified with the char attribute. Used when align="char" |
| colspan | number | Specifies the number of columns the current cell spans across. |
| header | id | Specifies a space-separated list of header cells that contain information about this cell. The value needs to correspond with the id of the header cell (which is set using the id attribute). This attribute is useful for non-visual browsers. |
| height | pixels | Deprecated - Specifies the height of the table cell |
| nowrap | nowrap | Deprecated - Prevents text from automatically wrapping. |
| rowspan | number | Specifies the number of rows the current cell spans across. |
| scope | col
colgroup
row
rowgroup | This attribute is used on header cells and specifies the cells that will use this header's information. |
| valign | top
middle
bottom
baseline | Vertical alignment. |
| width | pixels or % | Specifies the width of the table cell |
Standard Attributes:
| Attribute | Description |
|---|
| class | Document wide identifier |
| dir | Specifies the direction of the text |
| id | Document wide identifier |
| title | Specifies a title to associate with the element. |
| style | Helps to include inline casecadubf style sheet. |
| lang | Sets the language code. |
| xml:lang | Sets the language code. |
Event Attributes:
| Attribute | Description |
|---|
| onclick | Script runs when a mouse click |
| ondblclick | Script runs when a mouse double-click |
| onmousedown | Script runs when mouse button is pressed |
| onmouseup | Script runs when mouse button is released |
| onmouseover | Script runs when mouse pointer moves over an element |
| onmousemove | Script runs when mouse pointer moves |
| onmouseout | Script runs when mouse pointer moves out of an element |
| onkeypress | Script runs when key is pressed and released |
| onkeydown | Script runs when key is pressed |
| onkeyup | Script runs when key is released |
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