Remove Gallery from Desktop View?

Site URL: https://www.cetoolsinc.com/

I removed the gallery from desktop view, but the blank block is still visible. How do i remove the blank block on desktop view? I've tried every combo of CSS to try and remove it.

This is the code I used.

div#block-yui_3_17_2_1_1596549141846_3681>.sqs-block-content:first-child {
   display: none;
  }}
@media screen and (max-width:640px) {