how to add html code in bottm

Try editing footer.php and adding your markup to that file.

should i simply paste the html code into the php?

Save a copy of your working code first, but-yep.

I personally get my code working the way I want it to outside of word-press first, so I know where to check for errors.

wont it give errors if i put html in php code?? these are two different things right?