.block{width:400px;background:#0faf87;color:#fff;padding:100px 0;margin:40px auto;text-align:center;border-radius:20px}.rank{font-size:1.4rem;color:#0faf87;font-weight:500}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#000;margin-top:60px}button{background:#0faf87;padding:1rem;border-radius:5px;border:1px solid white;color:#fff;font-size:1rem}button[disabled]{opacity:.2;cursor:not-allowed}