ul
{
	margin-left:5em; 
}

.res
{
	border: 1px dashed #ccc;
	display: inline-block;
	height: 30px;
	vertical-align: baseline;
	width: 150px;
}

.pre
{
	display: inline-block;
	vertical-align: top;
}

.dra
{
	background-color: gray;
	border-radius: 1em;
	color: white;
	cursor: move;
	padding: 0 1em ;
	text-align: center; 
}

.pre > div
{
	margin: 2em 0;
}