In a QTextBrowser sometimes css styles applied in a tag will affect an EARLIER declared tag!

Set the following html text in a QTextBrowser

 
<ul>
<li><span style='font-size:5px'>really small text</span> first item</li>
<li>&nbsp;<span style='font-size:5px'>really small text</span> second item</li>
</ul>

The two bulleted items should show identically, but they don't.
You will see that when viewed the bullet in the first item has had the style "font-size:5px" applied to it even though that style was declared in a later tag!. In the second list item by putting a character between "<li>" and "<span" you avoid the bug.

I have encountered this bug quite a few times when displaying html pages in a qtextbrowser when tags are right beside each other not only with <li> tags, but it's the only example I have at the moment.