Post spacing and appearance help!

Hello,

So I've just made my first post on the website I've just created, here it is: http://nationofminecraft.4rumer.com/t1-forum-rules

Firstly, there are large spaces between each rule, I only want the spaces to be 2 lines. When I edit and save my adjustments they do not show up.

You can also see that from just under rule 8 in my thread, the box turns grey instead of the usual black. This also annoys me.

Is there anyway to fix both of these things?

Thanks,
Gunnishone 

Hmm...
1. Search the Frequently asked questions
2. Search space probelsm
3. Ask a mod
4. Or just send a feedback