* { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; border: none; margin: 0; padding: 0; box-sizing: border-box; } html, body, #wrapper { height: 100%; } #wrapper { align-items: center; display: flex; } #content { color: #333; margin: 0 auto; padding: 0.5rem; text-align: center; } h1 { font-weight: normal; font-size: 4.5rem; } h2 { display: block; font-size: 9rem; font-weight: bold; }