app.component.html

<div class="toolbar" role="banner">
  <span>Home</span>
  <a href="#">นศ</a>
  <a href="$">คะแนน</a>
  <div class="spacer"></div>
  <a href="#">Login</a>
</div>
<div>
  <div class="content" role="main">
    <div class="card highlight-card card-small">
      {{ title }}
    </div>>
    <div *ngFor="let s of students" class="card">
      <div class="card highlight-card card-small">{{ s.id }}</div>
      <span>{{ s.name }} {{ s.email }}</span>
    </div>
    <div *ngFor="let c of course" class="card">
      <div class="card highlight-card card-small">{{ c.title }}</div>
      <span>{{ c.description }}</span>
    </div>
  </div>
</div>
<router-outlet></router-outlet>