.block{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;width:400px;text-align:center;background:#0faf87;color:#fff;margin:40px auto;padding:100px 0;border-radius:20px;cursor:pointer}.rank{font-weight:700;font-size:1.4em}#app,.rank{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#444;margin-top:60px}#app,.rank,h3{text-align:center}button{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:1.4em;font-weight:700;background:#0faf87;color:#fff;border:none;border-radius:4px;padding:10px 30px;cursor:pointer;transition:all .2s ease-in-out}button[disabled]{opacity:.5;cursor:not-allowed}