#Snow{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    background: rgba(255,255,240,0.1);
    pointer-events: none;
}
body { 
     background-color: #efefef;
     background-image: url(https://lorempixel.com/1600/900);
     background-repeat: no-repeat; 
     background-attachment: fixed; 
     background-position: center 0; 
     background-size: cover; 
  }