Board Thread:Support Requests - Designing Your Wikia/@comment-25648422-20150605112301

So, ummm, I tried testing how to get a whole wide transparent background. Sadly, results have been poor. Can anyone tell me how? Here is a sample. The link is directed to their CSS by the way but I still couldn't identify what complete CSS they use for their full transparent background. Can somebody found what complete CSS they use for their full transparent background? 