Hello just started using plug in Category Post Tabber,

This is the best one I have found so far but trying to make some tweaks and looking for help.

I customized the colors and put a hover color in css/style and wondering if
1. Is is possible to put some padding in between the tabs?
2. Also the right margin seems a little shore and does not match up with theme, how can I change that.
3. the image size is a little small, how can I make bigger?
4. Lastly, Is there a way to have a widget title instead of just the widget?

Thanks