Forum:Personal wikia.css is not working

I am trying a personal css at http://mlp.wikia.com/wiki/User:Teyandee/wikia.css.

The problem: Background image is shown during the preview, but when I click "Publish" button the image is now shown. I tried to clear cache and view the wikia pages at Firefox and Opera but still no image is shown.

Teyandee 10:47, July 16, 2011 (UTC)
 * I'll try to test it and see what happens. ~> ฬ ђ  (tคlк ★  ς๏ภtгเ๒ร) 11:24, July 16, 2011 (UTC)
 * I've tested it and it appears to be fine, so I don't know what the problem could be. Maybe it was a one off thing, but it should be fine. ~> ฬ ђ  (tคlк ★  ς๏ภtгเ๒ร) 11:30, July 16, 2011 (UTC)
 * Hi Teyandee. Are you using Internet Explorer as an internet browser? I find that whenever I use IE, my CSS isn't applied. Rassilon of Old (Talk - Teru) 12:14, July 16, 2011 (UTC)
 * I tried FireFox 3.6.18 and Opera 11. Good news that at least someone is able to see the picture. Teyandee 12:18, July 16, 2011 (UTC)
 * Oh... And neither of them display your changes? Hmm, how odd. And you're sure that you've applied [ctrl] + [F5]? Rassilon of Old (Talk - Teru) 12:21, July 16, 2011 (UTC)
 * Yes. I tried reloading the page by Ctrl+R,Ctrl+Shift+R/Ctrl+F5 + using the browsers built-in cache cleaning tools. Teyandee 12:29, July 16, 2011 (UTC)

I think I've found your problem... Try this:

body {background-image: url('http://i.imgur.com/MbcCQ.jpg'); fixed center top no-repeat !important; }

Rassilon of Old (Talk - Teru) 12:39, July 16, 2011 (UTC)
 * I think I found a problem:
 * 1) I had to use the new Oasis skin. Yes, the themes are not working on Monobook as I thought.
 * 2) When I am on Oasis, the image IS shown but it is invisible for me at 1024*768. To see it I have to either reduce the page scale (for example to 90%) or change the screen resolution to the bigger one.
 * Sorry for the inconvenience, Rassilon of Old. Teyandee 13:07, July 16, 2011 (UTC)