text: import React from 'react';
  import Avatar from '@material-ui/core/Avatar';
  import Button from '@material-ui/core/Button';
  import CssBaseline from '@material-ui/core/CssBaseline';
  import TextField from '@material-ui/core/TextField';
  import FormControlLabel from '@material-ui/core/FormControlLabel';
  import Checkbox from '@material-ui/core/Checkbox';
  import Link from '@material-ui/core/Link';
  import Grid from '@material-ui/core/Grid';
  import Box from '@material-ui/core/Box';
  import LockOutlinedIcon from '@material-ui/icons/LockOutlined';
  import Typography from '@material-ui/core/Typography';
  import { makeStyles } from '@material-ui/core/styles';
  import Container from '@material-ui/core/Container';
  
  function Copyright() {
    return (
      <Typography variant="body2" color="textSecondary" align="center">
        {'Copyright © '}
        <Link color="inherit" href="https://material-ui.com/">
          Your Website
        </Link>{' '}
        {new Date().getFullYear()}
        {'.'}
      </Typography>
    );
  }
  
  const useStyles = makeStyles((theme) => ({
    paper: {
      marginTop: theme.spacing(8),
      display: 'flex',
      flexDirection: 'column',
      alignItems: 'center',
    },
    avatar: {
      margin: theme.spacing(1),
      backgroundColor: theme.palette.secondary.main,
    },
    form: {
      width: '100%', // Fix IE 11 issue.
      marginTop: theme.spacing(1),
    },
    submit: {
      margin: theme.spacing(3, 0, 2),
    },
  }));
  
  export default function SignIn() {
    const classes = useStyles();
  
    return (
      <Container component="main" maxWidth="xs">
        <CssBaseline />
        <div className={classes.paper}>
          <Avatar className={classes.avatar}>
            <LockOutlinedIcon />
          </Avatar>
          <Typography component="h1" variant="h5">
            Sign in
          </Typography>
          <form className={classes.form} noValidate>
            <TextField
              variant="outlined"
              margin="normal"
              required
              fullWidth
              id="email"
              label="Email Address"
              name="email"
              autoComplete="email"
              autoFocus
            />
            <TextField
              variant="outlined"
              margin="normal"
              required
              fullWidth
              name="password"
              label="Password"
              type="password"
              id="password"
              autoComplete="current-password"
            />
            <FormControlLabel
              control={<Checkbox value="remember" color="primary" />}
              label="Remember me"
            />
            <Button
              type="submit"
              fullWidth
              variant="contained"
              color="primary"
              className={classes.submit}
            >
              Sign In
            </Button>
            <Grid container>
              <Grid item xs>
                <Link href="#" variant="body2">
                  Forgot password?
                </Link>
              </Grid>
              <Grid item>
                <Link href="#" variant="body2">
                  {"Don't have an account? Sign Up"}
                </Link>
              </Grid>
            </Grid>
          </form>
        </div>
        <Box mt={8}>
          <Copyright />
        </Box>
      </Container>
    );
  }
  
  