I already got it to work. In the css was an !IMPORTANT who kept the content from responding to width changes.
Thanks!
Thank you guys for all the help!
I will have a look at it as soon as possible.
I’m looking for a layout we already have in another PDF file, but I want to use it in this PDf aswell. It has an image as header and footer and more than one font-family. But I couldn’t figure out where I can put the CSS styling. Is this even possible?