<p>If you download the original files, you need to compile Bootstrap's LESS files into usable CSS. To do that, Bootstrap only officially supports <ahref="http://twitter.github.io/recess/">Recess</a>, Twitter's CSS hinter built on top of <ahref="http://lesscss.org">less.js</a>.</p>
<p><strong>Bootstrap does not officially support third-party JavaScript libraries</strong> like Prototype or jQuery UI. Despite <code>.noConflict</code> and namespaced events, there may be compatibility problems that you need to fix on your own. Ask on the <ahref="http://groups.google.com/group/twitter-bootstrap">mailing list</a> if you need help.</p>