import { styled } from '@mui/material/styles'; import Typography from '@mui/material/Typography'; import { red, green, blue } from '@mui/material/colors'; const Root = styled('div')(({ theme }) => ({ padding: theme.spacing(1), [theme.breakpoints.down('md')]: { backgroundColor: red[500], }, [theme.breakpoints.up('md')]: { backgroundColor: blue[500], }, [theme.breakpoints.up('lg')]: { backgroundColor: green[500], }, })); export default function MediaQuery() { return ( down(md): red up(md): blue up(lg): green ); }