abbreviations in HTML

Abbreviations are underlined short forms, and full form of these abbreviations are visible when pointers is hovered over this text.

Example

<!DOCTYPE HTML>
<html>
<head>
<title>HTML Abbreviations</title>
</head>
<body>
	<p>
		<abbr title="Organization of the Petroleum Exporting Countries">OPEC</abbr>
	</p>
	
	<p>
		<abbr title="North Atlantic Treaty Organization">NATO</abbr>
	</p>
	
	<p>
		<abbr title="United Nations Organization">UNO</abbr>
	</p>
</body>
</html>

Output

OPEC

NATO

UNO