.kuang_1{
    background: url("images/kuang_1.png") no-repeat;
    height: 314px;
    margin-bottom: 45px;
}
.kuang_2 {
    background: url("images/kuang_2.png") no-repeat;
    height: 441px;
    margin-bottom: 45px;
}
.kuang_3 {
    background: url("images/kuang_3.png") no-repeat;
    height:546px;
    margin-bottom: 45px;
}
.kuang_4 {
    background: url("images/kuang_4.png") no-repeat;
    height:296px;
    margin-bottom: 45px;
}
.kuang_5 {
    background: url("images/kuang_5.png") no-repeat;
    height: 322px;
    margin-bottom: 45px;
}
.kuang_6 {
    background: url("images/kuang_6.png") no-repeat;
    height:321px;
    margin-bottom: 45px;
}
.kuang_7 {
    background: url("images/kuang_7.png") no-repeat;
    height:374px;
    margin-bottom: 45px;
}
.kuang_8 {
    background: url("images/kuang_8.png") no-repeat;
    height: 240px;
    margin-bottom: 45px;
}
.kuang_9 {
    background: url("images/kuang_9.png") no-repeat;
    height: 713px;
    margin-bottom: 45px;
}
.kuang_10 {
    background: url("images/kuang_10.png") no-repeat;
    height: 271px;
    margin-bottom: 45px;
}
.kuang_11 {
    background: url("images/kuang_11.png") no-repeat;
    height: 295px;
    margin-bottom: 45px;
}
.kuang_12 {
    background: url("images/kuang_12.png") no-repeat;
    height: 213px;
    margin-bottom: 45px;
}
.kuang_13 {
    background: url("images/kuang_13.png") no-repeat;
    height: 525px;
    margin-bottom: 45px;
}
.kuang_14 {
    background: url("images/kuang_14.png") no-repeat;
    height: 381px;
    margin-bottom: 45px;
}
.kuang_15 {
    background: url("images/kuang_15.png") no-repeat;
    height:525px;
    margin-bottom: 45px;
}