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Tutorial on using html label label_Basic tutorial

WBOY
WBOYOriginal
2016-05-16 12:06:451918browse

In Dreamweaver8, as soon as a form or form object, text box, etc. is added, a will be added to the code. I have never understood what this label does. I just saw the explanation today:
There are two attributes in Label that are very useful, one is FOR and the other is ACCESSKEY.
FOR attribute
Function: Indicates the HTML element to be bound to the Label tag. When you click this tag, the bound element will gain focus.
Usage:

ACCESSKEY attribute:
Function: Indicates access to the element bound to the Label tag When you press the hotkey, the bound element will get focus.
Usage:
Limitations: The shortcut key set by the accessKey attribute cannot be used with the browser's Shortcut keys conflict, otherwise the browser's shortcut keys will be activated first.

Notes
To bind LABEL to another control, set the FOR attribute of the LABEL element to the same ID as the control. Binding LABEL to the control's NAME property is useless. However, to submit the form, you must specify a name for the control to which the LABEL element is bound.
There are two ways to add an underline to the specified shortcut key. The LABEL element's rich text support allows adding U elements on both sides of the shortcut key characters specified by the ACCESSKEY attribute. If you prefer to use style sheets (CSS) to apply styles, you can include the character in SPAN and set the style to "text-decoration: underline".

If the user clicks LABEL, the onclick event on LABEL will be triggered first, and then the onclick event on the control specified by the htmlFor attribute will be triggered. Pressing the shortcut key set by LABEL will set the focus but not trigger the onclick event.

Things to note:
1. Nesting of tags is not allowed.
2. This element is available in HTML and scripts of Internet Explorer 4.0 and above.
3. This element is an inline element.
4. This element requires a closing tag.

Element sample code
The following example uses the LABEL element and the ACCESSKEY attribute to set the focus of the text box.


Demo:


[Ctrl A Select all Note:If you need to introduce external Js, you need to refresh to execute]
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