@media only screen and (max-width: 768px){.white-fade:before{content:"";position:absolute;top:-50px;left:0;z-index:10;width:100%;height:50px;background:linear-gradient(to bottom,#fff0,#fff)}}@media only screen and (min-width: 768px){.professor-banner{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:-10}.professor-banner-1{position:absolute;left:60%;top:50%;transform:translate(-50%,-50%);z-index:-10}.professor-banner-2{position:absolute;left:70%;top:50%;transform:translate(-50%,-50%);z-index:-10}}