Problems with Background and Opera browsers

first of all I would like to congratulate you, GameAddict is a really nice Template.
Im contacting you due to some problems…

1 – The background (Top and Bottom) not adapt correctly with all resolutions. Im using a 1900×1080 Background.
Fading the background image would be a solution… but i think would be better to adapt the Background to all resolutions… Is there some CSS Code to add? And where?

Try to be the most accurate u can, im not good at all in CSS.

2 – With opera the template just dont work correctly.
I’ve 4 users that occured in the same error, the Template is “empty” and they can see just the wallpaper. All these 4 users use a Mac OS…

3 – Font is just too tiny, i would love to know how to change the Font (The font and the font’s dimensions) in the articles, articles description in Home.

http://www.offlineplayers.com/

Thank you for your attention.
I look forward to your response

Andrea Ferrari