import React from 'react'; import { makeStyles } from '@material-ui/core/styles'; import AppBar from '@material-ui/core/AppBar'; import Toolbar from '@material-ui/core/Toolbar'; import Typography from '@material-ui/core/Typography'; import Container from '@material-ui/core/Container'; const useStyles = makeStyles((theme) => ({ root: { // flexGrow: 1, display: 'flex', }, content: { flexGrow: 1, height: '100vh', overflow: 'auto', }, appBar: { zIndex: theme.zIndex.drawer + 1, }, appBarSpacer: theme.mixins.toolbar, })); export default function PlainLayout(props) { const classes = useStyles(); return (