body{margin:0}details{position:absolute;top:0;left:0;color:#f8f8ff;background-color:#0003;font-family:Verdana,sans-serif;padding:8px}details a{color:#f8f8ff}#qrcode{position:absolute;bottom:0;left:0}#qrcode.icon{opacity:40%;width:64px;height:64px}#qrcode.expanded{opacity:100%;width:164px;height:164px}#qrcode:hover{cursor:pointer}