text: import AppBar from '@mui/material/AppBar';
  import Toolbar from '@mui/material/Toolbar';
  import Typography from '@mui/material/Typography';
  import Container from '@mui/material/Container';
  
  export default function Footer() {
      return (
          <AppBar position="static" color="primary" style={{position:'fixed', left:'0', bottom:'0', width:'100%'}}>
            <Container maxWidth="md">
              <Toolbar>
                <Typography variant="body1" color="inherit" style={{margin:"auto"}}>
                  © 2021
                </Typography>
              </Toolbar>
            </Container>
          </AppBar>
      )
  }
  