Example
A button located outside a form (but still a part of the form):
<form action="demo_form.asp" 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>
Try it Yourself »
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. |