HTML <select> required Attribute

HTML select Tag Reference HTML <select> tag

Example

An HTML form with a required drop-down list:

<select required>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>

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Definition and Usage

The required attribute is a boolean attribute.

When present, it specifies the user is required to select a value before submitting the form.


Browser Support

Attribute
required Not supported Not supported Not supported Not supported Not supported

Differences Between HTML 4.01 and HTML5

The required attribute is new in HTML5.


Differences Between HTML and XHTML

In XHTML, attribute minimization is forbidden, and the required attribute must be defined as <select required="required" />.


Syntax

<select required>

HTML select Tag Reference HTML <select> tag

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