Problem with custom css

What is your URL?

here are the url: https://www.denpraxisalltagleichtermeistern.de

@klaus-moll On this website paste your CSS in question and share the link. Paste Bin

*Edit: No need found possible issue

If you not want to do that just share the stylesheet URL would work also.

*Edit: No need found possible issue

@klaus-moll Your custom CSS can not have the following I assume

.widgets-grid-layout:after, .widgets-grid-layout:before {
content : " "; <--- Possible Issue
display : table;
}

this ist the link to Pastbin: https://pastebin.com/hn4Mrq7h

@klaus-moll This one has me stuck now too. It all validated correctly for me.

The problem is solved. Thank you for the great support.

greetings
Klaus

@klaus-moll What was the issue if I may ask.

I have the css file again exactly examined and three syntax errors found. Then I deleted the custom css completely and saved. Then I set the new css file and the problem was solved.

Thanks again for your help.
Greeting
Klaus

PS: Now there is a new problem with jetpack. For this I will set a new request.