A form with a required text area:
The required attribute is supported in all major browsers, except Internet Explorer and Safari.
The required attribute is a boolean attribute.
When present, it specifies that a text area is required/must be filled out (in order to submit the form).
The required attribute is new in HTML5.
In XHTML, attribute minimization is forbidden, and the required attribute must be defined as <textarea required="required">.
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