<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="3.css" />
  </head>
  <body>
    <div id="root">
      <ul>
        <li v-for="name in names" v-text="name"></li>
      </ul>

      <input id="input" type="text" />
      <button id="button">Add name</button>
    </div>

    <script src="../lib/vue-2.1.3.js"></script>
    <script src="3.js"></script>
  </body>
</html>