product variant selection- horizontal layout

Site URL: https://khaki-gerbil-cdd4.squarespace.com/

pass:modern84

Hi,

I use the "simple" product layout. Is it possible to display product variant selection fields horizontally on a whole width of the product page? One field next to another- instead of default column layout starting at half of the width of the page? Like in this visualization:  

Thanks for any advice!

Tom