.imgbed{
    position: relative;
    display: block;
    height: 0;
    width: 100%;
    padding-top: 70%;}
.imgbed img{
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;}
.sjxx{padding:10px 20px 0;}
.sjxx li{border:1px solid #90000a;border-radius:8px;line-height:50px;font-size:16px;width:200px;height:50px;background:url(images/ldxx01.png) no-repeat 20px center;background-size:30px;padding-left:70px;}
.sjxx li a{color:#90000a;}
.sjxx li:hover{background:url(images/ldxx02.png) no-repeat 20px center #90000a;background-size:30px;}
.sjxx li:hover a{color:#fff;}