HTML 5 <thead> Tag
The HTML <thead> tag is used for adding a header to a table.
The <thead> tag is used in conjunction with the <tbody> tag and the <tfoot> tag in determining each part of the table (header, footer, body). Browsers can use this information to enable scrolling of the table body independently of the header and footer - particuarly useful for large tables. Also, when printing a large table that spans multiple pages, this information can enable the table header and footer to be printed at the top and bottom of each page.
Note: If you use the <thead> tag, it must be used in the following context:
- As a child of a
<table>element, after any<caption>, and<colgroup>elements and before any<tbody>,<tfoot>, and<tr>elements, but only if there are no other<thead>elements that are children of the<table>element. - The
<thead>tag can contain zero or more<tr>elements, which in turn, can contain zero or more<th>elements (but no<td>elements *).
* The HTML5 specification disallows having <td> elements within <thead> elements. This tends to make sense, given that the <th> element stands for "Table Header".
Example
Modify the code below, then click "Update". See below for attributes.
Attributes
HTML tags can contain one or more attributes. Attributes are added to a tag to provide the browser with more information about how the tag should appear or behave. Attributes consist of a name and a value separated by an equals (=) sign, with the value surrounded by double quotes. Here's an example, style="color:black;".
There are 3 kinds of attributes that you can add to your HTML tags: Element-specific, global, and event handler content attributes.
The attributes that you can add to this tag are listed below.
Element-Specific Attributes
The following table shows the attributes that are specific to this tag/element.
| Attribute | Description |
|---|---|
| None |
Global Attributes
The following attributes are standard across all HTML 5 tags.
| accesskey | hidden | itemtype |
| class | id | lang |
| contenteditable | inert | spellcheck |
| contextmenu | itemid | style |
| dir | itemprop | tabindex |
| draggable | itemref | title |
| dropzone | itemscope | translate |
For a full explanation of these attributes, see HTML 5 global attributes.
Event Handler Content Attributes
Event handler content attributes enable you to invoke a script from within your HTML. The script is invoked when a certain "event" occurs. Each event handler content attribute deals with a different event.
Here are the standard HTML 5 event handler content attributes.
| onabort | onerror* | onmousewheel |
| onblur* | onfocus* | onpause |
| oncanplay | onformchange | onplay |
| oncanplaythrough | onforminput | onplaying |
| onchange | oninput | onprogress |
| onclick | oninvalid | onratechange |
| oncontextmenu | onkeydown | onreadystatechange |
| ondblclick | onkeypress | onscroll |
| ondrag | onkeyup | onseeked |
| ondragend | onload* | onseeking |
| ondragenter | onloadeddata | onselect |
| ondragleave | onloadedmetadata | onshow |
| ondragover | onloadstart | onstalled |
| ondragstart | onmousedown | onsubmit |
| ondrop | onmousemove | onsuspend |
| ondurationchange | onmouseout | ontimeupdate |
| onemptied | onmouseover | onvolumechange |
| onended | onmouseup | onwaiting |
For a full explanation of these attributes, see HTML 5 event handler content attributes.