* { box-sizing: border-box; }
html, body { background: #fff; color: #000; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.6; }
.container { width: min(100% - 40px, 900px); margin: 0 auto; padding: 48px 0; }
h1, h2, h3, h4, h5, h6 { color: #000; line-height: 1.2; }
h1 { margin: 0 0 32px; font-size: 40px; }
h2 { margin: 56px 0 20px; font-size: 30px; }
h3 { margin: 36px 0 16px; font-size: 22px; }
p { margin: 0 0 16px; }
@media (max-width: 600px) {
  .container { width: min(100% - 32px, 900px); padding: 32px 0; }
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
}