silverstripe-framework/css/SelectionGroup.css

.SelectionGroup {
	padding: 0px;
	clear : both;
}
.SelectionGroup li {
	list-style-type: none;
	float : left;
	clear : both;
}
.SelectionGroup li input {
	width: 20px;
	float : left;
}

.mainblock.allassets ul {
   padding: 0 0 0 10px;
   height:100px;
   overflow-y:scroll;
}	
.mainblock.allassets ul li {
   width: 150px;
}
.SelectionGroup li div.field {
	display: none;
	font-size: 1em;
}
.SelectionGroup li input, .right .SelectionGroup li label {
	display: block;
}	
.SelectionGroup li.selected div.field {
	margin-left: 30px;
	display: block;
	margin-bottom: 1em;
}	

.SelectionGroup li.selected label.selector {
	font-weight: bold;
}