Bootstrap Skeleton
This is a simple Bootstrap skeleton. You can fork it to get a ready to use Bootstrap fiddle.
HTML
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.0/bootstrap.min.js"></script>
<br>
<br>
<br>
<div class='container'>
<div class='hero-unit'>
<h2>Welcome</h2>
<p>Please log in</p>
<div id='login-box' class='pull-right control-group'>
<div class='clearfix'>
<input type='text' placeholder='Username' />
</div>
<div class='clearfix'>
<input type='password' placeholder='Password' />
</div>
<button type='button' class='btn btn-primary'>Log in</button>
</div>
</div>
</div>
CSS
@import url('http://twitter.github.com/bootstrap/assets/css/bootstrap.css');