body,html{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background:#fafafa;color:#111}button{cursor:pointer;font-size:1rem;padding:.5rem 1rem;border:1px solid #ccc;border-radius:4px;background:#fff}main{max-width:800px;margin:0 auto;line-height:1.6}