edit: préparation du template

src/components/HelloWorld.vue

@@ -1,43 +0,0 @@
-<script setup>
-import { ref } from 'vue'
-
-defineProps({
-  msg: String,
-})
-
-const count = ref(0)
-</script>
-
-<template>
-  <h1>{{ msg }}</h1>
-
-  <div class="card">
-    <button type="button" @click="count++">count is {{ count }}</button>
-    <p>
-      Edit
-      <code>components/HelloWorld.vue</code> to test HMR
-    </p>
-  </div>
-
-  <p>
-    Check out
-    <a href="https://vuejs.org/guide/quick-start.html#local" target="_blank"
-      >create-vue</a
-    >, the official Vue + Vite starter
-  </p>
-  <p>
-    Learn more about IDE Support for Vue in the
-    <a
-      href="https://vuejs.org/guide/scaling-up/tooling.html#ide-support"
-      target="_blank"
-      >Vue Docs Scaling up Guide</a
-    >.
-  </p>
-  <p class="read-the-docs">Click on the Vite and Vue logos to learn more</p>
-</template>
-
-<style scoped>
-.read-the-docs {
-  color: #888;
-}
-</style>

src/components/MainContent.vue

@@ -0,0 +1,20 @@
+<script setup>
+</script>
+
+<template>
+  <div class="mainContainer">
+  </div>
+</template>
+
+<style scoped>
+  /*CSS général app*/
+</style>
+
+<script>
+  export default {
+    name : 'MainContent',
+    mounted(){
+      console.log("Main content is loaded!");
+    }
+  };
+</script>