html {
  font-family: system-ui, sans-serif;
  background: #f5f6f8;
  color: #20242a;
}
body {
  margin: 0;
}
main {
  max-width: 720px;
  margin: 12vh auto;
  padding: 40px;
}
h1 {
  font-size: 42px;
}
p {
  line-height: 1.6;
}
a {
  margin-right: 20px;
}