JSFiddle - React, Tailwind, and code Playground

HTML

<div id='header'>
    <img src='http://hamsoc.polymath.io/wp-content/uploads/2013/05/hamsocheader.png' />
</div>

CSS

*{
    padding:0;
    margin:0;
}
#header img{
    max-width: 100%;
    height: auto;
}

#header {

    height: 209px;
}