Introduction and application of html5 button autofocus attribute_html5 tutorial skills

In HTML 5, you can set the automatic focus to reach a certain control when the page is loaded. This is the autofocus attribute, as follows:

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The browsers that support this attribute are :
fiefox 4, safari 5, Chrome 6, Opera 11, IE 10, and Android 2.3 and Safari Mobile 5- do not support

instance
When the page loads, a button will get focus:

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The code is as follows:

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Definition and usage
The autofocus attribute specifies that the button should automatically Get focus.

If this attribute is used, the button will get focus.
Differences between HTML 4.01 and HTML 5
The autoplay attribute is new in HTML 5.
Syntax

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The code is as follows: