text: import React from 'react';
  import PropTypes from 'prop-types';
  import { withStyles } from '@material-ui/core/styles';
  import CircularProgress from '@material-ui/core/CircularProgress';
  
  const styles = theme => ({
    progress: {
      margin: theme.spacing(2),
    },
  });
  
  function LoadingProgress(props) {
    const { classes } = props;
    return (
      <div>
        <CircularProgress className={classes.progress} />
      </div>
    );
  }
  
  LoadingProgress.propTypes = {
    classes: PropTypes.object.isRequired,
  };
  
  export default withStyles(styles)(LoadingProgress);
  