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Uncommon HTML elements: optgroup and html element optgroup

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Uncommon HTML elements: optgroup and html element optgroup

In a webpage form,<Optgroup>Element is used in<Select>Create a group of options in the element<Option>. This can better differentiate the differences between each group of options.

This element contains two attributes:DisabledAndLabel.

Disabled: indicates that the quota group cannot be selected.

1 <select> 2 <optgroup label = "Group 1"> 3 <option> Option 1.1 </option> 4 </optgroup> 5 <optgroup label = "Group 2"> 6 <option> Option 2.1 </option> 7 <option> Option 2.2 </option> 8 </optgroup> 9 <optgroup label = "Group 3" disabled> 10 <option> Option 3.1 </option> 11 <option> Option 3.2 </option> 12 <option> Option 3.3 </option> 13 </optgroup> 14 </select>

 

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Related Keywords:
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