Select and style only if the <input> element has a "required" attribute:
The :required selector selects form elements which are required.
Form elements with a required attribute are defined as required.
Note: The :required selector only applies to the form elements: input, select and textarea.
Tip: Use the :optional selector to select form elements which are optional.
Version: | CSS3 |
---|
The numbers in the table specifies the first browser version that fully supports the selector.
Selector | |||||
---|---|---|---|---|---|
:required | 10.0 | 10.0 | 4.0 | 5.0 | 10.0 |
CSS Selector :optional