CSS not working in Chrome with Twitter Bootstrap

I have following code:

<div id="results" class="results" style="height: 590px; overflow-y: scroll"></div>

The id results will be filled by ajax. Firefox shows Scroll bar but Chrome does not display it.

Can anyone help me ? Here is the testing site too http://beta.elasticbeanstalk.com/

Could it have something to do with this line of your css?:

<!-- language: lang-css -->

::-webkit-scrollbar {
  display: none;
}

Yes, yes it could.