ルートコンポーネント

App.vue

<template>
  <div id="app">
    <h1>{{title}}</h1>
    <nav>
      <router-link to="/dashboard">Dashboard</router-link>
      <router-link to="/heroes">Heroes</router-link>
    </nav>
    <router-view></router-view>
    <Messages />
  </div>
</template>

<script>
import Messages from './components/pages/Messages'

export default {
  name: 'app',
  components: {
    Messages
  },
  data: function() {
    return {
      title: 'Tour of Heroes',
    }
  }
};
</script>

<style>
h1 {
  color: #369;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 250%;
}
h2, h3 {
  color: #444;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: lighter;
}
body {
  margin: 2em;
}
body, input[type="text"], button {
  color: #888;
  font-family: Cambria, Georgia;
}
/* everywhere else */
* {
  font-family: Arial, Helvetica, sans-serif;
}
</style>

<style scoped>
h1 {
  font-size: 1.2em;
  color: #999;
  margin-bottom: 0;
}
h2 {
  font-size: 2em;
  margin-top: 0;
  padding-top: 0;
}
nav a {
  padding: 5px 10px;
  text-decoration: none;
  margin-top: 10px;
  display: inline-block;
  background-color: #eee;
  border-radius: 4px;
}
nav a:visited, a:link {
  color: #607d8b;
}
nav a:hover {
  color: #039be5;
  background-color: #cfd8dc;
}
nav a.active {
  color: #039be5;
}
nav a:nth-child(2) {
  margin-left: 10px;
}
</style>