.left-dsp{
    position:relative;}
.left-dsp .hd{}
.left-dsp .hd .prev{
    width: 27px;
    height: 45px;
    background: url(./index_files/spprev.png) top center no-repeat;
    position: absolute;
    left: -50px;
    top: 80px;
    display: block;
    z-index: 9;}
.left-dsp .hd .next{
    width: 27px;
    height: 45px;
    background: url(./index_files/spnext.png) top center no-repeat;
    position: absolute;
    right: -50px;
    top: 80px;
    display: block;
    z-index: 9;}

.left-dsp .bd{}
.left-dsp .bd ul{
    overflow:hidden; zoom:1;}
.left-dsp .bd ul li{
    width: 360px;
    height: 200px;
    float: left;
    overflow: hidden;
    position: relative;
    margin: 0 30px 30px 0;
    border: #ffffff 10px solid;
    -moz-box-shadow: 5px 5px #014e85;
    box-shadow: 5px 5px #014e85;}
.left-dsp .bd ul li img.btt {
    width: 100%;
    height: 100%;
    object-fit: cover;}
.left-dsp .bd ul li img.sptb {
    position: absolute;
    width: 30%;
    top: 23%;
    left: 35%;}