MyBB Community Forums

I'm trying to set my group username to be orange with a white stroke around it. 

I don't want a glow or shadow, I want a solid white line around the text. Is there any way to do this from the ACP. I saw another topic that asks me to edit the css but its not my forum. I've got my own usergroup there and wondered if they could simply edit it in the ACP.

Thanks.