Bootstrap Abbreviation Style
Description
For expanded text on long hover of an abbreviation,
include the title attribute with the <abbr> element.
Example
<!DOCTYPE HTML>
<html>
<head>
<link href="http://java2s.com/style/bootstrap.min.css" rel="stylesheet">
</head><!--from w w w . j a v a 2 s . c o m-->
<body style='margin: 20px;'>
<abbr title="attribute">attr</abbr>
</body>
</html>