Hi poppeye,
1. The space after the slideshow is just a padding, you can open file: /templates/kasestrasse_template/css/template.css, at approx line: 1137
#ja-topsl .main {
background: none repeat scroll 0 0 #FFFFFF
border-bottom: 1px solid #EFECE1
padding: 30px 0; <<< you can reduce this value.
}
2. The above padding value will affect the space before the line you’re mentioning.
For the space after the line, in the same above css file, around line 922
#ja-container .main {
background: none repeat scroll 0 0 #FFFFFF
padding: 20px 0 0; <<< change to your desired value;
}
Always remember to clean JAT3 cache once done.
Hope this helps.