1import React from "react";
2import { makeStyles } from "@material-ui/core/styles";
3
4const useStyles = makeStyles((theme) => ({
5  root: {
6    backgroundColor: theme.palette.secondary.main
7  }
8}));
9
10export default function App() {
11  const classes = useStyles();
12  return (
13    <div className={classes.root}>
14      <h1>Hello CodeSandbox</h1>
15      <h2>Start editing to see some magic happen!</h2>
16    </div>
17  );
18}