.installBox {
	overflow: visible;
	float: left;
	width: 450px;
	margin-top: 12px;
	border: 1px solid #CCC;
	padding: 8px;
}
.installBox .installText {
	width: 190px;
	float: left;
}
.installBox .installImage {
	text-align: center;
	float: right;
	width: 250px;
}
.installStepNum {
	font-size: 16px;
	font-weight: bold;
	color: #000;
}