.stars:after,.stars:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:transparent url(/images/stars.png) repeat top;animation:subtlePan 60s linear infinite;opacity:.4;z-index:-1}@keyframes subtlePan{0%{background-position:0 0}to{background-position:100px 100px}}