add class to remove top margin on titles

sections/main-order.liquid

@@ -21,7 +21,7 @@
     </symbol>
   </svg>
   <div>
-    <h1>{{ 'customer.account.title' | t }}</h1>
+    <h1 class="customer__title">{{ 'customer.account.title' | t }}</h1>
     <a href="{{ routes.account_url }}">{{ 'customer.account.return' | t }}</a>
   </div>