html timeline
<div class="timeline">
<div class="container left">
<div class="content">
<h2>2017</h2>
<p>2017 is good</p>
</div>
</div>
<div class="container right">
<div class="content">
<h2>2016</h2>
<p>2016 is good</p>
</div>
</div>
</div>