@charset "utf-8";
#quandi_jianjie{
	display:block;
	overflow:hidden;
	margin:auto;
	max-width:1200px;
	width:auto;
	height:auto;
	margin-top:40px;
	margin-bottom:40px;
}
#quandi_jianjie * img{
	max-width:100%;
	clear:both;
	height:auto;
	overflow:hidden;
}