Use the system font family so your web app look more native
Inspired by https://css-tricks.com/snippets/css/system-font-stack/
It works really well with CSS-in-JS style solutions, like styled-components:
import { injectGlobal } from 'styled-components'
import systemFontStack from 'system-font-stack'
injectGlobal`
body {
font-family: ${systemFontStack};
}
`