How to minimize padding?

Please watch the picture to understand what I mean:
https://www.blogpool.de/gfx/tabs-padding.jpg

The plugin so far works fine, but there is too much space around the titles and the text (marked orange in the picture).

I want to make it smaller but don’t know how.
Can anyone please help me ?!

• This topic was modified 4 years, 8 months ago by merlin1764.

The page I need help with: [log in to see the link]