ExampleTwo radio buttons with labels: <form> <label for="male">Male</label> <input type="radio" name="sex" id="male" /> <br /> <label for="female">Female</label> <input type="radio" name="sex" id="female" /> </form> | Browser Support |
1. Definition and Usage
The <label> tag defines a label for an <input> element.
The <label> element does not render as anything special for the user. However, it provides a usability improvement for mouse users, because if the user clicks on the text within the <label> element, it toggles the control.
The for attribute of the <label> tag should be equal to the id attribute of the related element to bind them together.
2. Differences Between HTML and XHTML
None
3. Optional Attributes
DTD indicates in which HTML 4.01/XHTML 1.0 DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.
| Attribute | Value | Description | DTD |
|---|---|---|---|
| for | element_id | Specifies which form element a label is bound to | STF |
4. Standard Attributes
The <label> tag supports the following standard attributes:
| Attribute | Value | Description | DTD |
|---|---|---|---|
| accesskey | character | Specifies a keyboard shortcut to access an element | STF |
| class | classname | Specifies a classname for an element | STF |
| dir | rtl ltr | Specifies the text direction for the content in an element | STF |
| id | id | Specifies a unique id for an element | STF |
| lang | language_code | Specifies a language code for the content in an element | STF |
| style | style_definition | Specifies an inline style for an element | STF |
| title | text | Specifies extra information about an element | STF |
| xml:lang | language_code | Specifies a language code for the content in an element, in XHTML documents | STF |
5. Event Attributes
The <label> tag supports the following event attributes:
| Attribute | Value | Description | DTD |
|---|---|---|---|
| onblur | script | Script to be run when an element loses focus | STF |
| onclick | script | Script to be run on a mouse click | STF |
| ondblclick | script | Script to be run on a mouse double-click | STF |
| onfocus | script | Script to be run when an element gets focus | STF |
| onmousedown | script | Script to be run when mouse button is pressed | STF |
| onmousemove | script | Script to be run when mouse pointer moves | STF |
| onmouseout | script | Script to be run when mouse pointer moves out of an element | STF |
| onmouseover | script | Script to be run when mouse pointer moves over an element | STF |
| onmouseup | script | Script to be run when mouse button is released | STF |
| onkeydown | script | Script to be run when a key is pressed | STF |
| onkeypress | script | Script to be run when a key is pressed and released | STF |
| onkeyup | script | Script to be run when a key is released | STF |
