.imgbed{
    position: relative;
    display: block;
    height: 0;
    width: 100%;
    padding-top: 56.25%;
    overflow:hidden;}
.imgbed img{
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;}
#picbox li{width:29.33%;float:left;padding: 1%;margin: 0 1% 1%;}
#picbox li h3{font-size:18px;line-height:2;text-align:center;color: #333;font-weight: normal;margin-top: 5px;}
#picbox li:hover h3{color:#fff;}


@media (max-width:1024px){
    #picbox {margin-top:20px;}
    #picbox li h3{font-size:16px;}
}

@media (max-width:768px){
    #picbox li{width:46%;}
}









.ma .ewm>span img{width:100%;}