Get a custom user CSS and type this

.answered-accepted {
  color: white !important;
  background: #090 !important;
}

Now go to answers.unity3d and look for an accepted answer. The design looks bad, because the <strong> in there overrides the customization. The fix I've found is this:

.answered-accepted, .answered-accepted * {
  color: white !important;
  background: #090 !important;
}

Now it looks fine on the website, but the code looks ugly!! How can I do this without repeating the class name?