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<!--><!DOCTYPE>
<a>
<abbr>
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<basefont>
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<h1> - <h6>
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<tt>
<u>
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<wbr>
HTML5 <input> required Attribute
Example
An HTML form with a required input field:
<form action="demo_form.asp">
Username: <input type="text" name="usrname" required="required" />
<input type="submit" />
</form>
Username: <input type="text" name="usrname" required="required" />
<input type="submit" />
</form>
Try it yourself »
Browser Support
The required attribute works in all major browsers, except Internet Explorer and Safari.
Definition and Usage
The required attribute is a boolean attribute.
When present, it specifies that an input field must be filled out before submitting the form.
Note: The required attribute works with the following input types: text, search, url, tel, email, password, date pickers, number, checkbox, radio, and file.
Differences Between HTML 4.01 and HTML5
The required attribute is new in HTML5.
Syntax
<input required="required" />
Note: The required attribute is a boolean attribute, and can be set in the following ways:
- <input required>
- <input required="required">
- <input required="">
HTML5 <input> tag
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Copyright 1999-2012 by Refsnes Data. All Rights Reserved.
Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2012 by Refsnes Data. All Rights Reserved.