I’ve been putting in some buttons with roll-overs in my space. I haven’t quite figured out what I’m doing yet, but I’m having fun, anyway! Look at the buttons in the module called "Sandbox" to the left. I’m doing the buttons per Mark Slack’s tutorial. If you visit Mark’s space, you’ll see how nice his buttons look.
Edited to add:
Well, Rats. Mark told me I need to make my buttons narrower. That’s what I get for not asking in the first place. Check out the bottom right corner of my space to see the buttons. I’m putting them there while I decide what to do.