#main-contents {
	width: 700px;
}

#main-contents #right {
	width: 240px;
	float:right;
}

#main-contents #left {
	float:left;
}

#china-office {
	width: 700px;
}

#china-office #right {
	width:500px;
}

#china-office #left {
	float:left;
	width:200px;
}