$body-color = var(--background-color)

body
  margin 0
  padding 0
  font-family -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif
  -webkit-font-smoothing antialiased
  -moz-osx-font-smoothing grayscale

code
  font-family source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace