html timeline

1<div class="timeline">
2  <div class="container left">
3    <div class="content">
4      <h2>2017</h2>
5      <p>2017 is good</p>
6    </div>
7  </div>
8  <div class="container right">
9    <div class="content">
10      <h2>2016</h2>
11      <p>2016 is good</p>
12    </div>
13  </div>
14</div>