Rp Tutorials

Hey guys! Sorry if this is a dumb question, but I can't figure out how to do it. I'm always seeing layouts like this or this, and I assume they're open to borrow provided it's asked to leave the credit in the coding, but how would I put it in my own journal? I've tried copying and pasting bits and I'm stumped. To be more specific, I could probably figure it out if I was able to see one of these layouts coded just to see where things would go, or if anyone can explain it like I'm a five year old? Thank you so much in advance!