Hey Peggy, now you've moved it in, you can just add the other code into the css box below that code to widen the bar. When you were widening the bar before and nothing was happening, it was because it was getting wider but going outside of the container (if that makes sense) so you couldn't see it. Now you've moved the bar in, the other code will widen it to fill the space.
This is the code I added in firebug to get the above affect
I've looked up the youtube title question, that's embedded direct from youtube so you won't be able to change in via the site it would have to be done in youtube. Looking online, youtube only allow you to customise the header/title color if you're a youtube channel partner. So it doesn't look like that will possible unfortunately.