* { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; }
html, body { padding: 0; margin: 0; font-size: 16px; text-align: center; }
h1, h2, h3 { margin-top: 0; font-weight: normal; }