Thank you, but what about the lines? You missed my main question. 😉
Hey there! Thank you, but I nailed it.
Finally I found this 2015 support post from Yigit that has solved the problem.
https://kriesi.at/support/topic/codeblock-in-fullwidth-how-to/
Can be closed here.
Of course, go and have a look (see private content)
Thank you Victoria, but its hard to believe, that there is no workaround for this problem. Isnt there a way to get a codebox or textbox to full screen view?
Thank you very much Yigit, can be closed here!