Hi Dagmar,

Becuase of befault style

#sp-main-body {padding: 100px 0;}

How to reduce space - read:

• https://www.joomshaper.com/documentation/helix-framework/customization-tips#how-to-reduce-space-between-header-and-article-s-area
• or general tip: https://www.joomshaper.com/documentation/helix-framework/customization-tips#how-to-reduce-space-between-header-and-component-area

Beside CSS from mentioned Helix guide , I mean

.view-article #sp-main-body {padding-top:0;}

Add & use also that line

.article-details .article-can-edit {margin-bottom: 0;}

Next time, to reduce waiting time use Code Inspector from your browser and preview CSS and check also our Helix Guide, many tips are there.

Thank you very much, I just couldn't find it myself Forest and trees

You have to find path between the trees, there is always at least one :]