Thread:Pecoes/@comment-4190137-20130713065116/@comment-3508190-20130713092913

Greetings funny-spelled one!

That triangle is one of those magic pseudo elements. This is what it what the important rule looks like by default:

The color is actually set by the border here. This will turn it pink:

Changing its background color doesn't do what you might think it does and you cannot add a border around the border. Unless you add a second pseudo-element. You could try to re-create the :after-element from scratch and add a black :before-element to simulate a border:

Something like that... You'll want to tinker some more with it.