Hiding a Section on Desktop only

Site URL: https://www.trajektory.com/new_home

I'm trying to make it so the long section with all of the laptops shows on mobile only (preview attached). 

I'm currently using the follow design CSS: 

@media screen and (min-width: 641px) { 
  div#yui_3_17_2_1_1606076529460_377 { display: none !important}
}

The div. ID must be wrong but I can't seem to figure out what to put. 

Thanks! 

Replace your previous attempt with the following.

@media screen and ( min-width: 641px ) {

  [data-section-id="5ee40ec1389cec341acf59b8"] {
  
    display: none;
    
    }
  }

Let us know how it goes.