CodePen

HTML

            
              
            
          
!

CSS

            
              
            
          
!
? ?
? ?
Must be a valid URL.
+ add another resource
via CSS Lint

JS

            
              function Remove_Discs () {
     if (typeof discs !== 'undefined') {
         for (var i = 0; i < discs.length; ++i) {
             var elem = surface.Get_Elem (discs [i]);
             elem.jelem.remove();
             surface.Remove_Elem (discs [i]);
         }
         delete discs;
     }
 }
            
          
!
Must be a valid URL.
+ add another resource
via JS Hint
Loading ..................