Product Description & Tabs

Hello! I have tabs working in the product description on Google Chrome, but I can't for the life of me figure out how to alter the CSS so that the product variants don't "hide" behind the tabs in Firefox. You can see what I mean on this product's description: link .

I have tried putting the characteristics and tabs into divs and changing their positions to relative, but that's not working, it only brings the characteristics to the top (above the tabs), but not below them. Thanks in advance!

EDIT: Figured it out, I made a simple CSS mistake!