JSFiddle - React, Tailwind, and code Playground

HTML

<div class="yourdiv"> 
<img src="http://www.google.nl/images/logos/ps_logo2.png" alt="" /> 
</div>
<br/>
<div class="yourdiv"> 
<img src="http://www.marinetraffic.com/ais/nl/images/google-earth-icon.png" alt="" /> 
</div>

CSS

.yourdiv {
    width: 150px;
    border: 1px solid black;
}

.yourdiv img 
{ 
    width:100%; 
    /*height will be automatic to remain aspect ratio*/ 
}