How to add A button with autofocus in HTML Page

The button autofocus attribute.

index.html

Example: HTML

<!DOCTYPE html>
<html>
<body>

<h1>The button autofocus attribute</h1>

<button type="button" autofocus onclick="alert('Hello world!')">Click Me!</button>

</body>
</html>

Output should be:

Type:	html
Category:	Web Tutorial
Sub Category:	HTML Attribute
Uploaded by:	Admin