.ex1:hover {
	-webkit-transform: translateY(-8px);
	-ms-transform: translateY(-8px);
	transform: translateY(-8px);
	-webkit-box-shadow: 0 0 6px #999;
	box-shadow: 0 0 6px #999;
	-webkit-transition: all .3s ease-out;
	transition: all .3s ease-out;
}
@font-face {
	font-family: "SourceHanSansCNBold";
	src: url("../font/syht/SourceHanSansCN-Bold.otf");
}
@font-face {
	font-family: "SourceHanSansCNHeavy";
	src: url("../font/syht/SourceHanSansCN-Heavy.otf");
}
@font-face {
	font-family: "SourceHanSansCNMedium";
	src: url("../font/syht/SourceHanSansCN-Medium.otf");
}
@font-face {
	font-family: "SourceHanSansCNRegular";
	src: url("../font/syht/SourceHanSansCN-Regular.otf");
}
@font-face {
	font-family: "SourceHanSansCNLight";
	src: url("../font/syht/SourceHanSansCN-Light.otf");
}
@font-face {
	font-family: "SourceHanSansCNNormal";
	src: url("../font/syht/SourceHanSansCN-Normal.otf");
}
.mainBackground{
	background:url('../img/background/bj.jpg') no-repeat;

	background-size:cover;
}

a:link { 
	color: black;    
	text-decoration: none;   
}   
a:visited { 
	color: black;   
	text-decoration: none;   
}   
a:hover {  
	color: orange;  
	text-decoration: none;   
}