gistfile1.css

.customize-control-layout .selection .layout {
	display: inline-block;
	width: 50px;
	height: 50px;
	padding: 5px;
	box-sizing: border-box;
	opacity: 0.4;
}
.customize-control-layout .selection .layout.selected {
	opacity: 1;
}
.customize-control-layout .selection .layout .icon {
	position: relative;
	width: 100%;
	height: 100%;
	box-sizing: border-box;
	cursor: pointer;
	text-indent: -9999px;
	background-position: 0 0;
	background-repeat: no-repeat;
}
.customize-control-layout .selection .layout[data-value="disabled"] .icon:after {
	position: absolute;
	display: block;
	content: '';
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	background: url(../img/disabled.png) center center no-repeat;
}
.customize-control-layout .selection .layout[data-value="none"] .icon, .customize-control-layout .selection .layout[data-value="disabled"] .icon {
	background-image: url(../img/none.png);
}
.customize-control-layout .selection .layout[data-value="left"] .icon {
	background-image: url(../img/left.png);
}

.customize-control-layout .selection .layout[data-value="right"] .icon {
	background-image: url(../img/right.png);
}
.customize-control-layout .selection .layout.selected .icon {
	cursor: not-allowed;
}