body,html{margin:0;padding:0;width:100%;height:100%;overflow:hidden}.logo{color:#fff;position:absolute;top:5rem;left:0;right:0;text-align:center;font-size:2rem}h1{text-shadow:0 0 20px #000,0 0 30px red,0 0 40px #ff0}@media only screen and (max-width:600px){.logo{font-size:1.5rem}}