JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <img src="https://cdn1.iconfinder.com/data/icons/new_twitter_icon/491/bird_twitter_new_single.png" alt=""/>
    
</div>
    
    <div class="container">
        <img src="http://www.greatvectors.com/preview/printer-icon.jpg" alt=""/>
    
</div>

CSS

body {margin:0; padding:0;}
.container {
    position:relative;
    height:150px;
    width:150px;
    border:1px solid #000;
    margin-right:20px;
    float:left;
    
}
.container img {
    Position:absolute;
    margin:auto;
    top:0;
    right:0;
    left:0;
    bottom:0;
    max-height:100%;
    max-width:100%; 
    }