changing quantity box in shopping cart page

Site URL: https://sampleyoga.squarespace.com/cart

Hi,

Im trying to change the background of the quantity box to match the grey colour on the rest of the page. I though this code would do the job but nothing happens when I put it in the css editor.

.RgUdJr28R input {
    background-color: #dee0e2 !important;
}

Thanks!

cant find how to delete this post.

but I think I solved my problem!