HTML 5 <optgroup> tag

Definition and Usage

Defines an option group. This element allows you to group choices. When you have a long list of options, groups of related choices are easier to handle.

Differences Between HTML 4.01 and HTML 5

NONE

Example

Attributes

• 4: indicates if the attribute is defined in HTML 4.01
• 5: indicates if the attribute is defined in HTML 5

Standard Attributes

For a full description, go to Standard Attributes in HTML 5.

Event Attributes

For a full description, go to Event Attributes in HTML 5.

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