* { box-sizing: border-box; }
body {
  margin: 0;
  background: #faf9f6;
  color: #292929;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
main {
  max-width: 660px;
  margin: 100px auto;
  padding: 0 28px;
}
h1 {
  margin: 0 0 14px;
  font-size: 25px;
  font-weight: 600;
  letter-spacing: -.025em;
}
p { margin: 0 0 24px; }
a { color: inherit; text-underline-offset: 4px; }
a:hover { color: #666; }
a:focus-visible { outline: 2px solid #555; outline-offset: 4px; }
ul { margin: 32px 0 0; padding-left: 20px; }
li { padding-left: 4px; margin-bottom: 18px; }
@media (max-width: 600px) {
  main { margin: 48px auto; padding: 0 24px; }
}