font-family

font-family: var(--font-sans);/* ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji' */
font-feature-settings: var(--font-sans--font-feature-settings, normal);/* normal */
font-variation-settings: var(--font-sans--font-variation-settings, normal);/* normal */

font-family: var(--font-serif);/* ui-serif, Georgia, Cambria, 'Times New Roman', Times, serif */
font-feature-settings: var(--font-serif--font-feature-settings, normal);/* normal */
font-variation-settings: var(--font-serif--font-variation-settings, normal);/* normal */

font-family: var(--font-mono);/* ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace */
font-feature-settings: var(--font-mono--font-feature-settings, normal);/* normal */
font-variation-settings: var(--font-mono--font-variation-settings, normal);/* normal */

font-family: <value>;

font-family: var(<custom-property>);