JSFiddle - React, Tailwind, and code Playground

HTML

<body>
  <div id="main-container">
      <img src="http://i978.photobucket.com/albums/ae265/horizoncars/lambo-spread-2.jpg" />
  </div>
</body>

CSS

* {
        margin: 0;
        padding: 0;
        height: 100%; 
    }
    #main-container {
        width:auto;
        height: 100%;
        margin: 0;
        padding: 0;
    }
    #main-container img {
        height: 100%;
        vertical-align: middle;
    }