body
  margin 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