.box{height:66.66%;width:100%;display:flex;justify-content:center;align-items:center}.btn_notFound{line-height:50px;height:50px;text-align:center;width:150px;cursor:pointer;color:#fff;transition:all .3s;position:relative}.btn_notFound button{z-index:2;display:block;position:absolute;width:100%;height:100%;color:#fff;font-size:17px;border:none;background-color:transparent}.btn_notFound:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;transition:all .5s;border:1px solid rgba(255,255,255,.2);background-color:#ffffff1a}.btn_notFound:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;transition:all .5s;border:1px solid rgba(255,255,255,.2);background-color:#ffffff1a}.btn_notFound:hover:before{transform:rotate(-45deg);background-color:#fff0}.btn_notFound:hover:after{transform:rotate(45deg);background-color:#fff0}