Board Thread:Support Requests - Getting Technical/@comment-9605025-20190316015110/@comment-168424-20190318173533

Have you reported this via Special:Contact/bug? You should do that in the very least.

I'd really have to see a really long code page to try to suggest a fix/workaround. Restricting the width is too artificial to be sure the problem is the same.

Regardless, those sites with that much CSS have a problem that shouldn't be fixed by worrying about whether syntax highlighting works right.