diff --git a/src/pages/index-page.vue b/src/pages/index-page.vue
index 4fee8f2..5dc3540 100644
--- a/src/pages/index-page.vue
+++ b/src/pages/index-page.vue
@@ -56,6 +56,7 @@ const FComponent: FunctionalComponent<{ prop: string }> = (props, context) => (
 </template>
 
 <style module>
+/* https://cn.vuejs.org/api/sfc-css-features#css-modules */
 h1 {
   font-family: 'Press Start 2P', cursive;
   color: #646cff;