$monospace-font-stack: SFMono-Regular, Consolas, Liberation Mono, Menlo, Courier, monospace
$normal-font-stack: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji
$quote-font-stack: Arial, Helvetica Neue, Helvetica, sans-serif