text: import React from 'react';
  import PropTypes from 'prop-types';
  import { withStyles } from '@material-ui/core/styles';
  import LinearProgress from '@material-ui/core/LinearProgress';
  
  const styles = {
    root: {
      flexGrow: 1,
    },
  };
  
  function LoadingBar(props) {
    const { classes } = props;
    return (
      <div className={classes.root} style={{marginTop:'30vh', marginBottom: '12vh'}}>
        <LinearProgress />
          <br/>
        <LinearProgress color="secondary" />
      </div>
    );
  }
  
  LoadingBar.propTypes = {
    classes: PropTypes.object.isRequired,
  };
  
  export default withStyles(styles)(LoadingBar);
  