body,html{padding:0 1rem 1rem;max-width:680px;margin:0 auto;background:#fff;color:#333;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}a{color:inherit;text-decoration:none;font-weight:500}*{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}hr{border:1px solid #ddd}iframe{background:#ccc;border:1px solid #ccc;height:10rem;width:100%;border-radius:.5rem;-webkit-filter:invert(1);filter:invert(1)}