JSFiddle - React, Tailwind, and code Playground

by Baumr

HTML

<section>
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/T-Square_fractal_(8_iterations).png/256px-T-Square_fractal_(8_iterations).png" alt="A"><div id="testin">Still a gap after removing whitespace...<div>
    </section>

CSS

img {
margin: 0; 
    padding: 0;
    border: 0;
}

div {
   margin: 0;
    background: blue;
    height: 500px;
    width: 100%;
    color: white;
    text-align: center;
}

/* appearance */

body {
text-align: center;
    padding: 20px;
}