The following code shows how to create inverse button from button element.
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css"
href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap-combined.min.css">
<script type='text/javascript'
src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/js/bootstrap.min.js"></script>
<style type='text/css'>
html {<!--from w w w .j a va2s.c o m-->
-webkit-font-smoothing: antialiased;
}
</style>
</head>
<body style='margin:30px'>
<button class="btn btn-inverse">John Doe</button>
<a class="btn btn-inverse">John Doe</a>
</body>
</html>