On landing page, please scroll down to “Unser Bestseller”.
On desktop view all looks fine. It comes especially to the word “Pflanzenstärkung”.
On smartfone view the width is reduced, probably cause of “Pflanzenstärkung”.
Apologies for the delayed response, it was a crazy busy Monday yesterday!
So for problem one, the word is a bit too long for a mobile’s viewport, so it goes outside of its container. Since this is a heading, I’d suggest using our Heading module. That way, you can change the font-size on mobile view.
Same thing is happening on your second problem, some of the words are too long.
I believe the third problem will be fixed once you switch them to Heading modules. Can you try that first and we’ll take it form there?