add slight color change for every other list item

src/main.css

@@ -424,6 +424,10 @@ html {
             border: none;
             border-radius: 0px 0px 5px 5px;
         }
+        
+        &:nth-child(odd) {
+            background: #272b33;
+        }
 
         &:hover {
             background: #3b404d;