Well I was just looking through random tutorials over the forum and noticed how there are those code blocks without any height limit that you need to scroll a bit in order to get to the bottom. Most boards like MyBB, phpBB, IceBB etc. have that ‘overflowed’ with a scroll and a defined height of the code blocks.
As of now, this is their current visualization:
Afterwards, with a scroll and height:
Scrollbar is random; just thought it would fit the style of the site and included it as an example. So simply that. Thanks for reading.