HTML <output> form attribute

The HTML <output> Tag

Definition and Usage

form attribute specifies the form to which the <output> tag belongs.

form The value of the attribute must be equal to the <form> the id attribute of the element.

Example

The <output> element located outside the form (but still part of the form):

<form action="/action_page.php" id="numform"}}
oninput="x.value=parseInt(a.value)+parseInt(b.value)"
<input type="range" id="a" name="a" value="50">
+ <input type="number" id="b" name="b" value="25">
<input type="submit">
</form>
<output form="numform" id="x" name="x" for="a+b"></output>

Try It Yourself

Syntax

<output form="form_id">

Attribute Value

Value Description
form_id

Specifies the form element to which the <output> element belongs.

The value of this attribute must be the id attribute of the <form> element in the same document.

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Not Supported Not Supported Not Supported Not Supported Not Supported

The HTML <output> Tag