src/styles/components/namespaces.scss

@@ -64,6 +64,12 @@ $lists-per-row: 5;
           box-shadow: $shadow-md;
         }
 
+        &:active,
+        &:focus,
+        &:focus:not(:active) {
+          box-shadow: $shadow-xs !important;
+        }
+
         @media screen and (min-width: $widescreen) {
           &:nth-child(#{$lists-per-row}n) {
             margin-right: 0;