import React from 'react'; import { Theme, makeStyles, createStyles } from '@material-ui/core/styles'; import Typography from '@material-ui/core/Typography'; import { green } from '@material-ui/core/colors'; const useStyles = makeStyles((theme: Theme) => createStyles({ root: { padding: theme.spacing(1), [theme.breakpoints.down('sm')]: { backgroundColor: theme.palette.secondary.main, }, [theme.breakpoints.up('md')]: { backgroundColor: theme.palette.primary.main, }, [theme.breakpoints.up('lg')]: { backgroundColor: green[500], }, }, }), ); export default function MediaQuery() { const classes = useStyles(); return (