.mod-caigou{
padding-top:10px;
padding-bottom:20px;
}
.mod-caigou .header{
padding:20px 0;
}
.mod-caigou .content li{
position:relative;
font-size:0;
line-height:0;
height:325px;
width:240px;
margin:0 10px 20px 0;
}
.mod-caigou .content li .offer{
position:absolute;
width:240px;
height:240px;
left:0;
top:0;
z-index:99;
background:url(about:blank);
}
.mod-caigou .content li .offer a.detail{
display:block;
width:240px;
height:240px;
overflow:hidden;
text-indent:-9999px;
}
.mod-caigou .content li .button{
position:absolute;
width:70px;
height:85px;
right:0;
bottom:0;
background:url(//cbu01.alicdn.com/cms/upload/2013/424/448/1844424_1643551954.jpg) no-repeat;
z-index:99;
}
.mod-caigou .content li .button a{
display:block;
float:left;
width:70px;
height:85px;
text-indent:-9999px;
overflow:hidden;
background:url(//cbu01.alicdn.com/cms/upload/2013/365/548/1845563_1643551954.png) no-repeat 0 0;
}
.mod-caigou .content li .button a:hover{
background-position:0 -85px;
}