Untitled

dabblet.css

.block {
	height:100px;
	width:100px;
	background:red;
	position: relative;
	transition: width 1s, height 1s;
	min-height:100px;
	min-width: 100px;
	}
	
	.block:hover {		
		height:50px;
		width:50px;
		}

.block::after {
	position:absolute;
	height: inherit;
	width: inherit;
	left:100px;
	top:0;
	content:'';
	background: blue;
	}

dabblet.html

<div class="block"></div>

settings.json

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