update

components/Background.vue

@@ -0,0 +1,14 @@
+<template>
+  <div>
+    <div class="backgroundImage" :style="{ backgroundImage: `url(${backgroundImagePath})` }">
+  </div>
+</template>
+
+<script>
+import backgroundImagePath from '~/assets/background.jpg'
+export default {
+  data() {
+    return { backgroundImagePath }
+  }
+}
+</script>