diff --git a/package.json b/package.json
index 4bbeaf7..c0db6aa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "seull-hello-vue.github.io",
-  "version": "0.1.0",
+  "version": "0.2.3",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/src/App.vue b/src/App.vue
index 633a5df..c1fbbeb 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,47 +1,9 @@
 <script setup>
-import HelloWorld from './components/HelloWorld.vue'
-import TheWelcome from './components/TheWelcome.vue'
+import { ref } from 'vue'
+
+const message = ref('Hello World!')
 </script>
 
 <template>
-  <header>
-    <img alt="Vue logo" class="logo" src="./assets/logo.svg" width="125" height="125" />
-
-    <div class="wrapper">
-      <HelloWorld msg="You did it!" />
-    </div>
-  </header>
-
-  <main>
-    <TheWelcome />
-  </main>
+<h1>{{ message }}</h1>
 </template>
-
-<style scoped>
-header {
-  line-height: 1.5;
-}
-
-.logo {
-  display: block;
-  margin: 0 auto 2rem;
-}
-
-@media (min-width: 1024px) {
-  header {
-    display: flex;
-    place-items: center;
-    padding-right: calc(var(--section-gap) / 2);
-  }
-
-  .logo {
-    margin: 0 2rem 0 0;
-  }
-
-  header .wrapper {
-    display: flex;
-    place-items: flex-start;
-    flex-wrap: wrap;
-  }
-}
-</style>