:root { --fonts-sans-serif: ui-sans-serif, "Liberation Sans", "Arimo", "Arial", sans-serif "Noto Emoji", "Noto Color Emoji", emoji; --fonts-serif: ui-serif, "Liberation Serif", Tinos, "Times New Roman", serif, "Noto Emoji", "Noto Color Emoji", emoji; --fonts-mono: ui-monospace, "Liberation Mono", Cousine, "Courier New", monospace, "Noto Emoji", "Noto Color Emoji", emoji; } * { font-variant-emoji: text; margin: 25%; font-family: var(--fonts-serif); background-color: #000000; color: #ffffff; }