space between header and page title; and above page titles on Main Page

Hi, I’m building a new page. My experience with css is almost none. I learn fast…
I need to reduce the space between title/s and another elements (header & next text box):
1. On my Main Page, after the slider and start page there is too much place between the end of the start page and the second one – next text box (wozki). Is it padding/margin of the title? Each next title has the same problem. Is there any possiblity to customize that space?
I suppose i must modify :
h2 class=”lp-text-title”

2. The same problem is when display the pages alone – the titles are too far from the header
Is it:
h1 class=”entry title” itemprop = itemprop= headline”
how to change this parameter?

Website: wp.bubu.kylos.pl