.list{max-width: 1280px;overflow: hidden;margin: 0 auto;width: 100%;}
.list ul{display: inline-block;width: 100%;}
.list ul li{float: left;width: 100%;position: relative;text-align: center;}
.list ul li img{max-width: 100%;}

.list ul li .icon1{position: absolute;bottom: 20%;left: 0;width: 100%;z-index: 1;text-align: center;}
.list ul li .icon1 a{margin-right: 2%;}
.list ul li .icon1 a:last-child{margin-right: 0;}
.list ul li .icon1 a img{max-width: 18%;}
.list ul li img{width: 100%;}
.imgUrlHtml{
	position: relative;
	height: 30px;
	padding: 20px 0;
	text-align: center;
}
<!-- .imgUrlHtml .img{height: 100%;position: relative;z-index: 1;background: #FFFFFF;padding:0 40px 0 0;display: inline-block;float: left;} -->
.imgUrlHtml .img{height: 100%;position: relative;z-index: 1;background: transparent;padding:0 40px 0 0;display: inline-block;float: left;}
.imgUrlHtml img{height: 30px;float: left;}
.imgUrlHtml hr{position: absolute;width: 100%;border: 1px solid #DEDEDE;right: 0;bottom: 34px;z-index: 0;margin: 0 0;height: 0;border-bottom: none;}
.iframe{float: left;width: 100%;border: none;max-height: 0;overflow: hidden;position: relative;}
.iframe iframe{float: left;width: 100%;border: none;min-height: 380px;}

.iframe2{float: left;width: 100%;border: none;max-height: 0;overflow: hidden;position: relative;}
.iframe2 iframe{float: left;width: 100%;border: none;min-height: 380px;}

.youhui{float: left;width: 100%;border: none;overflow: hidden;position: relative;padding-bottom: 50px;}
.youhui .list-yh{float: left;width: 100%;overflow: hidden;}


.youhui .list-yh p{max-width: 48%;float: left;}
.youhui .list-yh p:nth-child(2n){float: right;}
.youhui .list-yh p img{float: left;width: 100%;}

.on{max-height: 9999999999px;}

.body-zz{position: absolute;left: 0;top: 0;z-index: 999999999;width: 100%;height: 100%;}
.body-zzT{width: 200px;height: 100px;border-radius: 8px;background: rgba(0,0,0,0.5);position: absolute;left: 50%;top: 200px;margin-left: -100px;text-align: center;line-height: 100px;}

.list-nav{float: left;width: 100%;padding: 10px 0 60px 0;}
.list-nav a{width:20%;float: left;height: 60px;line-height: 60px;box-sizing: border-box;padding: 0 40px;}
.list-nav a img{max-width: 100%;vertical-align: middle;}

.list-nav-add{width: 100%;padding: 10px 0 60px 0;display: flex;justify-content: space-between;box-sizing: border-box;padding: 20px 20px;}
.list-nav-add a{box-sizing: border-box;display: flex;text-align: center;padding: 0 20px;}
.list-nav-add a img{max-width: 100%;vertical-align: middle;}