I hope I'm posting this in the right category - apologies if not. I'm sure there is a simple answer to this. I'm not very familiar with CSS coding, but basically want to create a wraparound dark background to my tweets in the sidebar here: http://test.petergostelow.com/
Something like what has been achieved here: http://www.leonmccarron.com/
I basically want the tweets to stand out more. If this is CSS coding, can someone tell me how/where to write it into the twitter plugin editing for a novice.