Simple: AdSense

/* No Script */ body,html{overflow:hidden} .noscript{background:#1277cb;color:#fff;padding:8% 0 0 0;position:fixed;bottom:0;left:0;top:0;right:0;z-index:1000;height:auto;-webkit-transform:translateZ(0);transform:translateZ(0);overflow:hidden} .noscript p{margin:0;text-align:center;padding:0 20px 10px 20px;margin:auto;font-size:3rem;line-height:1.5;font-family:monospace;max-width:990px;text-transform:uppercase;font-weight:500} .noscript p span{color:#ffe88b;font-size:10rem;line-height:normal;font-weight:normal}