content: import React from 'react';
  import { makeStyles } from '@material-ui/core/styles';
  import LinearProgress from '@material-ui/core/LinearProgress';
  
  const useStyles = makeStyles({
    root: {
      flexGrow: 1,
    },
  });
  
  function LinearIndeterminate() {
    const classes = useStyles();
  
    return (
      <div className={classes.root}>
        <LinearProgress />
        <br />
        <LinearProgress color="secondary" />
      </div>
    );
  }
  
  export default LinearIndeterminate;
  