How to fix padding in highlight js?

Question

JavaScript

Hello. There is a problem, the pre block has some strange height. What's wrong?
https://codepen.io/anon/pen/QYgVmN

Answer 1

Line breaks are treated as empty strings by the script.
Here, removed: https://codepen.io/KorniloFF/pen/XOgopR
UPD - removed line breaks between pre and code
https://codepen.io/KorniloFF/pen/XOgopR