:root {

  /* Font smoothing */

  --font-smoothing: auto;

  /* GitHub.com system fonts */

  --font-family-monospace: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo,

    Courier, monospace;

  --font-family-sans: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica,

    Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol;

}