Now if we could just get the left margin bug fixed when editing CSS pages then editing CSS pages on UCP wikis will be significantly less stressful.
There's a bug where having over 1,000 lines of CSS increases the margin on the left for the line numbers, but the cursor doesn't also get the extra margin. Because of this, if you type, it'll put your text in the wrong location.
I've already reported the said bug a little while ago, and am looking forward to seeing it fixed. As of recently I've been reviewing the CSS that I have on non-UCP wikis, checking that it is compatible with UCP and rewriting it if it isn't.