...

dabblet.css

/**
 * ...
 */
.container { width: 100%; background: red; }
ul { background: white; display: inline-block; position: relative; margin: 0 0 0 200px; }
ul:before { content: ''; display: block; width: 200px; height: 100%; position: absolute; left: -200px; background: white; }

dabblet.html

<div class="container">
	<ul>
		<li>Item 1</li>
		<li>Item 2</li>
		<li>Item 3</li>
	</ul>	
</div>

dabblet.js

// alert('Hello world!');

settings.json

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