CHANGE: updated compose file

Backend/src/main.css

@@ -39,6 +39,7 @@
         grid-template-columns: subgrid;
         grid-column: 1 / -1;
         border-color: var(--color-neutral-400);
+        transition: background-color 0.2s ease-in-out;
     }
 
     .grid-sub:hover {
@@ -56,6 +57,7 @@
             margin: 0 10%;
         }
 
-        .grid-sub {}
+        .grid-sub {
+        }
     }
 }