#children_content{position:relative;z-index:1}#children_content:before{position:absolute;z-index:-1;top:0;left:50%;display:block;width:100vw;height:88.6vw;content:'';-webkit-transform:translate(-50%,0);transform:translate(-50%,0);background:url(../img/cmn/bg1.png) 0 0/100% auto no-repeat}#children_content ul{font-size:1.675vw;margin:2vw 0 4vw}@media screen and (max-width:767px){#children_content ul{font-size:3.75vw;margin:3.125vw 0 6.25vw}}