*{
    padding: 0;
    margin: 0;
}
body{
    background-color: #F6F6F8;
}
.banner,.activity,.topitem{
    position: relative;
}
.bannerimg,.banner,.activity,.contentfirstfloor,.footer{
    width: 100%;
}
.livebroadcast,.activity img,.introduction,.introductionchild{
    position: absolute;
}
.livebroadcast{
    width: 219px;
    height: 93px;
    right: 185px;
    top: 178px;
}
.activity img{
    width: 83%;
    height: 428px;
    left: 9%;
    top: -158px;
}
.introduction{
    width: 63%;
    height: 141px;
    left: 19%;
    top: -30px;
    font-size: 22px;
    color: #9B9FAB;
    overflow: hidden;
}
.introductionchild{
    left: 0;
    top: 0;
    right: -25px;
    bottom: 0;
    overflow-y: scroll;
    overflow-x: hidden;
}
.topitem,.topitemchild,.firstfloor,.contentfirstfloor{
    display: flex;
}
.topitem,.firstfloor,.contentfirstfloor{
    justify-content: space-between;
}
.topitem{
    width: 75%;
    left: 13%;
    top: 230px;
}
 .link-box{
    color: black;text-decoration:none;flex:1;display:block;
    margin-right: 10px;
}
.topitemchild{
    /*width: 303px;*/
    height: 282px;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    border-radius: 6px;
    background-color: #FFFFFF;
}
.topitemchild img{
    width: 100px;
    height: 100px;
}
.content{
    width: 75%;
    margin:-35px 0 200px 13%;
}
.contentchild{
    /*width: 304px;*/
    height: 141px;
    background-color: #FFFFFF;
    border-radius: 6px;
}
.firstfloor{
    align-items: center;
    border-bottom: 1px solid #EEEEEE;
    padding:10px 0 20px 0;
    margin: 0 24px 0 20px;
}
.secondfloor{
    padding-top:10px ;
    margin-left: 40px;
    color: #9B9FAB ;
}
.contentfirstfloor{
    margin-top: 19px;
}
.footer img{
    vertical-align:middle;
    width:100%;
}