HTML button form Attribute
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HTML <button> form Attribute

❮ HTML <button> tag

Example

A button located outside a form (but still a part of the form):

<form action="/action_page.php" method="get" id="form1">
  First name: <input type="text" name="fname"><br>
  Last name: <input type="text" name="lname"><br>
</form>

<button type="submit" form="form1" value="Submit">Submit</button>
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Definition and Usage

The form attribute specifies one or more forms the button belongs to.


Browser Support

The numbers in the table specify the first browser version that fully supports the attribute.

Attribute
form 10.0 Not supported 4.0 5.1 9.5

Differences Between HTML 4.01 and HTML5

The form attribute is new in HTML5.


Syntax

<button form="form_id">

Attribute Values

Value Description
form_id Specifies the form element the <button> element belongs to. The value of this attribute must be the id attribute of a <form> element in the same document.

❮ HTML <button> tag