Without a link to your site I can not help you.
Add your code and then post a link to your site.
Thanks,
Anne
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You can already see my code, and here is my site: http://gkb.url.ph/
All 3 are showing on using my laptop with firefox and chrome.
On another note, you have declared the background image in 2 places in the main stylesheet body tag and the responsive one-row-fluid tag. Remove 1 of them as you don't need to use extra resources loading unneeded code. And a suggestion for you is that your image really only works on larger resolutions. So move the image background to the responsive default file under a media query that suits your background by using min-width: ??px. By also putting it in your responsive default you are not going to force mobile users to load a background that is not seen.