Board Thread:Support Requests - Getting Technical/@comment-26231129-20160320122853

I'm back at it again with more questions :). So I am trying to created this template and I'm basing it off one from the Spongebob Wiki, and it uses --> and <--. How exactly do these work, I know if you add them they prevent lines of nothing (If it's in a ifeq, and the answer is no) from showing up, but to what extent do they work that way? 