.block{width:400px;border-radius:20px;background:#0faf87;color:#fff;text-align:center;padding:100px 0;margin:40px auto}.rank{font-size:1.4em;color:#0faf87}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#444;margin-top:60px}button{color:aqua;background-color:#000;padding:10px 20px;font-size:1.4em;border-color:aqua;font-style:italic;cursor:pointer}button[disabled]{opacity:.2;cursor:not-allowed}