System fonts
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
Arial, sans-serif;
or
font: 1rem/1.2 BlinkMacSystemFont, -apple-system, "Segoe UI", Roboto, Helvetica,
Arial, sans-serif;
The shorthand version cannot start with -apple-system
!