On my own site, when hovering over a list-item, it highlights black, instead of the darker gradiented background which appears when hovering on the JQueryMobile Docs website.

I found my code here under the “basic linked lists” right at the top. I have tried giving it other themes etc. but nothing seems to solve this simple issue.
Here is my piece of code:
<ul data-role="listview" data-theme="b">
<li><a href="acura.html">Acura</a></li>
<li><a href="audi.html">Audi</a></li>
<li><a href="bmw.html">BMW</a></li>
</ul>
The only thing I can think of is the container in which the list is held, or something, but it’s not that…
Here’s my setup:
Running Rails 3.2.6 with the latest JQuery and latest JQueryMobile.
What could possibly cause this, and how can I solve it?
This happened to me too. If you delete app/assets/stylesheets/scaffolds.css.scss, lists should no longer have a black background when hovering over them.