Blank space between add to cart and dropdown description! Sense theme Please help!

I’ve got this problem where there is a big gap between my add to cart and my dropdown menu! Please does anyone know some code to fix this!? Ive been looking and i cant find anywhere that solves it! Thanks!

You can give your drop-down menu Settings width is 100%

how do i do that please?

i tried adjusting the page width and that didnt work

and its a collapsible row rather than a dropdown description from what it says. Im guessing they are the same thing!

give me your shop url.I want see that drop down

thanks it is heathoodofficial.myshopify.com