css 1

Hi,

So I've been trying to change my profile for a while, but when I incert my css code, for some reason the page just doesn't change... at all. Even the background color. Lol. I'm sure I write correctly, because I have no problems at working with css for my own web sites, so idk what's causing this.
Maybe I have to wait for changes to apply or something? It's really frustrating at this point.

bye