JSFiddle - React, Tailwind, and code Playground

HTML

<div class="a" style="height: 350px">
  <h2>This is a Title</h2>
  <img src="http://fillmurray.com/150/150" alt="" />
    <p>This is some content</p>
    <p>This is some content</p>
     <p>This is some content</p>
     <p>This is some content</p>
  <a href="#" class="button">TESTING</a>
</div>
<div class="a" style="height: 350px">
  <h2>This is a Title</h2>
  <img src="http://fillmurray.com/150/150" alt="" />
    <p>This is some content</p>
     <p>This is some content</p>
     <p>This is some content</p>
  <a href="#" class="button">TESTING</a>
</div>
<div class="a" style="height: 350px">
  <h2>This is a Title</h2>
  <img src="http://fillmurray.com/150/150" alt="" />
  <a href="#" class="button">TESTING</a>
    <p>This is some content</p>
    <p>This is some content</p>
    <p>This is some content</p>
    <p>This is some content</p>
</div>

CSS

.a{
  width: 33%;
  float: left;
  border: 1px solid red;
  position: relative;
  text-align: center;
    padding: 2%;
}

img {
    display: block; 
  width: 100%; 
  max-width:150px; 
  height: auto;
  margin: 2% auto;
}

.button{
  position: absolute;
 bottom: 5px;
  background: green;
  display: block;
  left: 50%;
  width: 50%;
  margin-left: -25%;
    border-radius:10px;
}