body{
     background: #414D77;
}
#home{
    position: relative;
    z-index: 999;
 background-color:#FFF;
opacity:0.8;

}
.bgBox{
    height: 100%;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
   
}
.bg{
position: absolute;
    width: 350px;
    left: 50%;
height:100%;
    bottom: 0;
    transform: translate(-50%);
 background: url("https://images.cnblogs.com/cnblogs_com/nouveau/1262038/o_44B33085199A86480135F4B8FE65EF91.png") center center no-repeat;
    background-size: 100% 100%;
 
}