Each breakpoint matches a fixed screen width. Values are min-width based and apply when the screen width is equal or greater.

SizeDescriptionWidth
initialPhones (portrait)0px
xsPhones (landscape)520px
smTablets (portrait)768px
mdTablets (landscape)1024px
lgLaptops1280px
xlDesktops1640px

Usage

Most component size and layout props will accept an additional Responsive object shape for modifying the given prop across breakpoints.

Each size maps to a corresponding key, the value of each will be applied when the screen size is greater than or equal to the named breakpoint.

<Heading
  size={{
    initial: "3",
    md: "5",
    xl: "7",
  }}
/>