Please check attached picture where we are unable to set-up the background Image. Would be great if we can have pointers in the right direction.
It is just a normal page.. if there are better ideas please suggest...
Please share more information on this, where you want to set the background image, because according to your screenshot, the background image is already set.
http://balaji.pencilruler.com/quiz-sample/
Please check this page... It has started looking ugly as the background image doesn't megre with content page color. I am unable to change button colors and they are not highlighting as well when i decrease the opacity. I want to add a different background to different pages. and would like the background on the content page and not on the background please.
Yes the css that I gave you will effect all the pages on the website (as I assumed the background image will be on all the pages of website).
If you want to add opacity only on particular pages only, then instead of that css use this css like this (remove previous css):