.container{
    margin:0 auto;
}
.header{
    height: 300px;
    width:100%;
    background-color: limegreen;
}
.page-wall{
    position: relative;
    width:100%;
}
.main-con{

}
.main-con-item{
    height: 600px;
    width:1200px;
    margin: 0 auto;
    text-align: center;
    line-height: 600px;
    background-color: #c33;
    color: #fff;
    font-size: 20px;
    margin-bottom: 2px;
}
.floor-bar{
    position: fixed;
    left:0;
    top:50%;
    width:30px;
    height: 400px;
    margin-top: -200px;
    display: none;
}
.floor-bar li{
    width: 30px;
    height: 30px;
    text-align: center;
    font-size: 14px;
    line-height: 30px;
}
.floor-bar li a{
    display: none;
}
.floor-bar .floor-first{
    display: block;
    color: #000;
}

.floor-bar li:hover{
    background: #c33;
}
.floor-bar li:hover a{
    display:block;
    color: #fff;
}
.floor-bar li:hover .floor-first{
    display:none;
}

.floor-bar li.select{
    background: #c33;

}
.floor-bar li.select a{
    color: #fff;
}
@media screen and (max-width: 1080px) {
    .header{
        height: 100px;
        width:100%;
        background-color: limegreen;
    }
    .main-con-item{
        height: 200px;
        width:75%;
        margin: 0 auto;
        text-align: center;
        line-height: 600px;
        background-color: #c33;
        color: #fff;
        font-size: 20px;
        margin-bottom: 2px;
    }
}