diff --git a/src/pages/Index.vue b/src/pages/Index.vue
index bedc9e6..7c2d681 100644
--- a/src/pages/Index.vue
+++ b/src/pages/Index.vue
@@ -42,6 +42,11 @@
   margin: 0.5rem;
 }
 
+.button.active {
+  font-weight: bold;
+  background: black;
+}
+
 </style>
 
 <script>