90's Tribute Page

Hey everyone! I would like some feedback and help with my tribute page. I know most people make a tribute page for a person…however, I decided to make a tribute to 90’s music. I need some help with floating. I created two columns under my rock/alternative sections and the last two sections moved down…I need help on getting them to go back up next to the rock/alternative section.

Please feel free to leave feedback as well! Thanks in advance.

Line 65 closing </div> is closing your row class early.

Thank you! I got it worked out!