.marketcase_size {
	font-size: 0;
	margin: 0px auto;
	padding: 0;
	list-style-type: none;
	display: block;
	width: 100%;
	border: 0px solid #f7f7f7;
	border-radius: 0px;
	position: relative;
	clear:both;
	overflow:hidden;
	margin-bottom:20px;
	
	/*图片框阴影*/
	-webkit-box-shadow: 0px 0px 10px #787878;
	-moz-box-shadow: 0px 0px 10px #787878;
	background: #f9f9f9;
}
.marketcase_size div.marketcase_dummy {
	padding-top:160%;/*改变图片的高度*/
}
.marketcase_size img{
	position: absolute;
	top: 0;
	/*bottom: 0; 垂直左右居中*/
	left: 0;
	right: 0;
	width: 100%;
	/*max-width: 100%;*/
	display: block;
	margin: auto;
	padding: auto;
	border: 0px solid blue;	
	border-radius: 0px;
}