I recently paid for a Wordpress theme, which I intend to customize extensively, but I've run into an issue that I've never come across before. I'm not a complete newbie but since I've never had this problem before, I don't know where to begin or what might be causing it, and I thought maybe you guys could help me.
When I view my site in the latest version of Opera, every time I move the mouse cursor over the header div, a top margin is created (See screenshot). Does anybody know what might be causing this and how I can fix it? It doesn't happen in Firefox, Chrome or Internet Explorer.
My URL is: http://www.projectdisobey.com
Thanks in advance!