Fix spacing issuing on popular links

app/assets/stylesheets/views/_homepage.scss

@@ -265,13 +265,13 @@
 
   display: grid;
   grid-auto-flow: row;   // Use CSS grid to calculate the number of rows
-  grid-auto-rows: fractions(1); // Set all rows to same fractional height of the complete grid
   grid-template-columns: fractions(1);
-
+  
   @include govuk-media-query($from: "desktop") {
     // Note that browsers that don't support CSS grid display the component as one column on all
     // breakpoints
     grid-template-columns: fractions(3);
+    grid-auto-rows: fractions(1); // Set all rows to same fractional height of the complete grid
 
     // For browsers that don't support CSS grid, constrain the width to 50% to improve usability
     // especially for screen magnifier users
@@ -289,6 +289,9 @@
   // internal margins.
   margin: 0 govuk-spacing(3);
   padding: 0 govuk-spacing(4) govuk-spacing(4) 0;
+  &:last-of-type {
+    padding-bottom: 0;
+  }
 }
 
 .homepage-most-viewed-list__item-link {