HTML for Attribute
Definition and Usage
When used together with the <label> element, the
for attribute specifies which form element a label is bound to.
When used together with the <output> element, the
for attribute specifies the relationship between the result of the
calculation, and the elements used in the calculation.
Applies to
The for attribute can be used on the following elements:
| Elements | Attribute |
|---|---|
| <label> | for |
| <output> | for |
Examples
For Example
Three radio buttons with labels:
<form action="/action_page.php">
<input type="radio" id="html" name="fav_language" value="HTML">
<label for="html">HTML</label><br>
<input type="radio" id="css" name="fav_language"
value="CSS">
<label for="css">CSS</label><br>
<input type="radio"
id="javascript" name="fav_language" value="JavaScript">
<label for="javascript">JavaScript</label><br><br>
<input type="submit" value="Submit">
</form>
Try it Yourself »
Output Example
Perform a calculation and show the result in an <output> element:
<form oninput="x.value=parseInt(a.value)+parseInt(b.value)">0
<input type="range" id="a" value="50">100
+<input type="number" id="b" value="50">
=<output name="x" for="a b"></output>
</form>
Try it Yourself »
Browser Support
The for attribute has the following browser support for each element:
| Element | |||||
|---|---|---|---|---|---|
| label | Yes | Yes | Yes | Yes | Yes |
| output | 10.0 | Not supported | 4.0 | 5.1 | 11.0 |
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