Material-Ui Components in Material-Ui library

import React from 'react';
import Container from '@material-ui/core/Container';
import Grid from '@material-ui/core/Grid';
import Box from '@material-ui/core/Box';
import Typography from '@material-ui/core/Typography';
import Link from '@material-ui/core/Link';
import Button from '@material-ui/core/Button';
import TextField from '@material-ui/core/TextField';
import FormControlLabel from '@material-ui/core/FormControlLabel';
import Checkbox from '@material-ui/core/Checkbox';

export default function Form(props) {
  const content = {
    'brand': { image: 'mui-assets/img/logo-pied-piper-icon.png', width: 40 },
    'header': 'Create a new account',
    'terms': 'I agree to the terms of use and privacy policy.',
    '01_primary-action': 'Sign up',
    '01_secondary-action': 'Already have an account? Sign in',
    ...props.content
  };

  let brand;

  if (content.brand.image) {
    brand = <img src={ content.brand.image } alt="" width={ content.brand.width } />;
  } else {
    brand = content.brand.text || '';
  }

  return (
    <section>
      <Container maxWidth="xs">
        <Box pt={8} pb={10}>
          <Box mb={3} textAlign="center">
            <Link href="#" variant="h4" color="inherit" underline="none">
              {brand}
            </Link>
            <Typography variant="h5" component="h2">{content['header']}</Typography>
          </Box>
          <Box>
            <form noValidate>
              <Grid container spacing={2}>
                <Grid item xs={12} sm={6}>
                  <TextField variant="outlined" required fullWidth autoComplete="fname" name="firstName" id="firstName" label="First name" />
                </Grid>
                <Grid item xs={12} sm={6}>
                  <TextField variant="outlined" required fullWidth name="lastName" id="lastName" label="Last name" autoComplete="lname" />
                </Grid>
                <Grid item xs={12}>
                  <TextField variant="outlined" required fullWidth name="email" id="email" label="Email address" autoComplete="email" />
                </Grid>
                <Grid item xs={12}>
                  <TextField variant="outlined" required fullWidth name="password" id="password" label="Password" type="password" autoComplete="current-password" />
                </Grid>
                <Grid item xs={12}>
                  <FormControlLabel control={<Checkbox name="terms" value="1" color="primary" />} label={content['terms']} />
                </Grid>
              </Grid>
              <Box my={2}>
                <Button type="submit" fullWidth variant="contained" color="primary">
                  {content['01_primary-action']}
                </Button>
              </Box>
              <Box textAlign="right">
                <Link href="#" variant="body2">{content['01_secondary-action']}</Link>
              </Box>
            </form>
          </Box>
        </Box>
      </Container>
    </section>
  );
}