HTML <th> tag represents table header cells.
The th tag is generally used to define headers cells for table columns. It is the child element of HTML <thead> tag that represents table headers.
Also see HTML <table> tag that is the root element of HTML tables that contains <caption> tag, <colgroup> tag, <thead> tag, <tbody> tag, <tfoot> tag and much more.
HTML th Tag Sample Code
<html>
<head>
<title>HTML/HTML5 th Tag with Example</title>
</head>
<body>
<table border="1">
<caption>Roll No:28 Name: Mack A. John</caption>
<colgroup>
<col width="50%" span="1">
<col width="50%" span="1">
</colgroup>
<thead>
<tr>
<th>Subject</th>
<th>Marks Obtained</th>
</tr>
</thead>
<tbody>
<tr>
<td>HTML</td>
<td>49</td>
</tr>
<tr>
<td>CSS</td>
<td>45</td>
</tr>
<tr>
<td>JavaScript</td>
<td>47</td>
</tr>
</tbody>
<tfoot>
<tr>
<td>Total</td>
<td>141</td>
</tr>
</tfoot>
</table>
</body>
</html>
HTML th Tag Sample Result
| Subject | Marks Obtained |
|---|---|
| HTML | 49 |
| CSS | 45 |
| JavaScript | 47 |
| Total | 141 |
Note: All the elements within table does not have visual effects or style. To see tables attractive use CSS styles.
Tag Specific Attributes Support
Following are common attributes that are supported by <th> tag.
| Attribute | Value | Description |
|---|---|---|
| align | center justify left right |
Represents the align for the text of the table header cells |
| bgcolor | color_name #xxxxxx |
Represents the background color of the table header cells |
| colspan | numbers | Represents the number of columns to span |
| rowspan | numbers | Represents the number of rows to span |
| charoff | number | Represents a character to use for alignment offset text |
| char | character | Represents a character to use for alignment text |
| headers | id | Represents header cells that are related to another cell |
| height | pixel | Represents height of the table header cells |
| width | pixel % |
Represents width of the table header cells |
| valign | baseline bottom middle top etc |
Represents the vertical align for the text of the table header cells |
Standard Attributes Support
HTML <th> tag supports mostly all HTML Attributes. Following are some most common attributes that are used by <th> tag. You can get more details about available HTML Attributes here.
| Attribute | Value | Description |
|---|---|---|
| class | user_defined | Represents a style for an element which is used in CSS style sheet |
| id | user_defined | Represents unique id for an element |
| style | css_properties | Represents an inline style for an element for e.g style=”color:red;text-decoration:underline;” |
| title | user_defined | Represents a tooltip information for an elements like img, a, abbr etc |
Event Attributes Support
The “script” is invoked when a certain “event” occurs. Each event handler content attribute deals with a different event. HTML <th> tag supports mostly all HTML Event Attributes. Following are some most common event attributes that are used by <th> tag. You can get more details about available HTML Event Attributes here.
| Attribute | Value | Description |
|---|---|---|
| onclick | script | Event Fires immediately when mouse click on the specified element |
| ondblclick | script | Event Fires immediately when mouse double-click on the specified element |
| onkeydown | script | Event Fires immediately when user is pressing a down key from keyboard |
| onkeypress | script | Event Fires immediately when user presses a key from keyboard |
| onkeyup | script | Event Fires immediately when user releases a key from keyboard |
| onmousedown | script | Event Fires immediately when mouse pointer gets down from an element |
| onmousemove | script | Event Fires immediately when mouse pointer moves over an element |
| onmouseout | script | Event Fires immediately when mouse pointer gets out from an element |
| onmouseover | script | Event Fires immediately when mouse pointer moves over an element |
| onmouseup | script | Event Fires immediately when a mouse pointer is released over an element |
