I need some help with Harlowe formating my hooks and other

It is driving me bonkers! I keep trying to change my hooks from the blue to just black.

A:link {text-decoration: none; font-weight:bold; color: #000;}
hook {text-decoration: none; font-weight:bold; color: #000;}
A:internalLink {text-decoration: none; font-weight:bold; color: #000;}
tw-link {text-decoration: none; font-weight:bold; color: #000;}

I've tried these in my CSS with no luck. Still blue. These (except A:link) where recommended in various sites/forum posts. Where am I going wrong? I know I haven't used CSS in a few years so I'm a bit rusty but...

Also, is there a way that you can have certain hooked lines scroll to be at the top of the screen, so people don't need to scroll down the page?

Finally is there any way to make a click hook that plays music/videos? I can get them on the page but not to play on queue.

I appreciate any help. I've honestly hunted google for the past week before coming here to post.

Thanks a bunch!