HTML Optgroup tag

Example Group together related options with <optgroup> tags: <select>   <optgroup label="Swedish Cars...

Example

Group together related options with <optgroup> tags:

<select>   <optgroup label="Swedish Cars">     <option value="volvo">Volvo</option>     <option value="saab">Saab</option>   </optgroup>   <optgroup label="German Cars">     <option value="mercedes">Mercedes</option>     <option value="audi">Audi</option>   </optgroup> </select>

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Definition and Usage

The <optgroup> tag is used to group together related options in a select list.
If you have a long list of options, groups of related options are easier to handle for the user.

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Browser Support

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

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Differences Between HTML and XHTML

NONE

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Required Attributes

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

Attribute	Value	Description	DTD
label	text	Specifies a description for a group of options	STF

Optional Attributes

Attribute	Value	Description	DTD
disabled	disabled	Specifies that an option group should be disabled	STF

Standard Attributes

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

Event Attributes

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