body { text-align: center; padding: 150px; }
h2 { font-size: 40px; font-weight: 500; }
.d1 { font-size: 24px; font-weight: 400; }
.d2 { font-size: 20px; font-weight: 300; }
body { font: 20px -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; color: #333; }
article { display: block; text-align: left; width: 650px; margin: 0 auto; }
a { color: #dc8100; text-decoration: none; }
a:hover { color: #333; text-decoration: none; }
.center { text-align: center; }