content: import React from 'react';
  import { withStyles } from '@material-ui/core/styles';
  import MuiToolbar from '@material-ui/core/Toolbar';
  
  export const styles = theme => ({
    root: {
      height: 64,
      [theme.breakpoints.up('sm')]: {
        height: 70,
      },
    },
  });
  
  function Toolbar(props) {
    return <MuiToolbar {...props} />;
  }
  
  export default withStyles(styles)(Toolbar);
  