Screen Ranges and Breakpoints - Foundations - Design System

Responsive styling and viewport dependant JavaScript.

#Screen Ranges

These ranges represent the most common ones we use for responsive design.

#Screen Range Media Queries

Media queries for CSS that is only applied within. All range names are inclusive, for example mobileTabletDesktop means mobile and tablet and desktop.

Query	range start	range end
`screenRangeQueries.mobile`	`0px`	`699px`
`screenRangeQueries.tablet`	`700px`	`991px`
`screenRangeQueries.desktop`	`992px`	`1839px`
`screenRangeQueries.widescreen`	`1840px`	Infinity
`screenRangeQueries.mobileTablet`	`0px`	`991px`
`screenRangeQueries.tabletDesktop`	`700px`	`1839px`
`screenRangeQueries.desktopWidescreen`	`992px`	Infinity
`screenRangeQueries.mobileTabletDesktop`	`0px`	`1839px`
`screenRangeQueries.tabletDesktopWidescreen`	`700px`	Infinity

import { screenRangeQueries } from "@blocks/theme";

const ExampleComponent = styled.div`
  /* mobile first */
  background-color: green;

  /* 992px to Infinity */
  ${screenRangeQueries.desktopWidescreen} {
    background-color: purple;
  }
`;

#Screen Range Effect Hook

The useScreenRangeEffect executes range based javascript. Use with caution, this may cause unwanted re-renders, when setting state.

Callback arguments

isInRange is true and false according to matching the range
reason shows the phase of when it was matched, "mount" or "change"

import { useScreenRangeEffect } from "@blocks/theme";
import { useState } from "react";

const Component = () => {
  const [isDesktopOrWidescreen, setIsDesktopOrWidescreen] = useState(false);

  useScreenRangeEffect(
    "desktopWidescreen", // screen range name
    (isInRange, reason) => {
      setIsDesktopOrWidescreen(isInRange);
    },
    [],
  );
};

Hint: For touch and mouse distinction, consider using useDeviceEffect().

#Breakpoints

Breakpoint values are accessible via breakpoints object from @blocks/theme.

Breakpoint	viewport width
xxs	`431px`
xs	`700px`
sm	`992px`
md	`1200px`
lg	`1400px`
xl	`1600px`
xxl	`1840px`

#Breakpoint Media Queries

Use screenRangeQueries whenever possible, breakpointRangeQueries are for special cases where the ranges are not flexible enough.

// try to use screenRangeQueries whenever possible.
import { breakpointRangeQueries } from "@blocks/theme";

const ExampleComponent = styled.div`
  background-color: green;

  /* from 0px to 1199px */
  ${breakpointRangeQueries["*-md"]} {
    background-color: red;
  }
`;

#Syntax of the breakpoint queries

Wildcard based open boundaries.

Query	range start	range end	description
`breakpointRangeQueries["xs-md"]`	`700px`	`1199px`	everything between `xs` (inclusive) up to the `md` breakpoint (exclusive)
`breakpointRangeQueries["*-md"]`	`0px`	`1199px`	everything from zero up to the `md` breakpoint (exclusive)
`breakpointRangeQueries["md-*"]`	`1200px`	Infinity	everything from `md` (inclusive) to Infinity

#Breakpoint Range Effects

The useBreakpointRangeEffect hook is a simple way to listen to the breakpoint changes in JavaScript.

The callback arguments

isInRange is true and false according to matching the range
reason shows the phase of when it was matched, "mount" or "change"

For more flexibility, consider using useMediaQueryEffect() instead.

import { useBreakpointRangeEffect } from "@blocks/theme";
import { useState } from "react";

const Component = () => {
  const [inRange, setInRange] = useState(false);

  useBreakpointRangeEffect(
    "md-*", // breakpoint range query key
    (isInRange, reason) => {
      setInRange(isInRange);
    },
    [],
  );
};

#Media Query Effect Hook

The useMediaQueryEffect hook is a more flexible way to listen to the media query changes in JavaScript. It leverages the window.matchMedia API under the hood: MDN matchMedia.

import { useMediaQueryEffect } from "@blocks/theme";
import { useState } from "react";

const Component = () => {
  const [isLandscape, setIsLandscape] = useState(false);

  useMediaQueryEffect(
    "(orientation: landscape)", // media query
    (queryDidMatch) => {
      setIsLandscape(queryDidMatch);
    },
    [],
  );
};

const CustomQueryComponent = () => {
  // You can also use this hook to build custom screen range queries
  const [inRange, setInRange] = useState(false);

  // 992px - 1199px
  const customScreenRangeQuery = `@media (min-width: ${breakpoints.sm}px) and (max-width: ${breakpoints.md - 1}px)`;
  useMediaQueryEffect(customScreenRangeQuery, (queryDidMatch) =>
    setInRange(queryDidMatch),
  );
};