Untitled

dabblet.css

* {
  	margin: 0;
  	padding: 0;
  	box-sizing: border-box;
  	position: relative;
  	}
  
html, body {
  	height: 100%;
	}
		
div {
  	background: indianred;
  	color: white;
  	border: 1px solid;
  	}

.a {
  	float: left;
  	}
.c {
  	float: right;
  	}
.a, .c {
  	width: 25%;
  	top: -100%;
  	}
.b {
  	width: 50%;
  	min-height: 100%;
  	margin: 0 auto;
  	}

dabblet.html

<div class='b'>B</div>
<div class='a'>A</div>
<div class='c'>C</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"separate","fontsize":"100","seethrough":"","prefixfree":"1","page":"all"}