The main application of my project defines a QFrame item in a stylesheet like this:

QFrame
{
padding: 0px;
margin: 0px;
border-style:none;
}

I want to overwrite this for a particular class so a line will show up, I tried using:

MyClass QFrame {}

...but no luck. I've wrestled with stylesheet issues before and this bugs me to the nth degree cause everything that should work hasn't worked.