content: import React from 'react';
  import ListItem from '@material-ui/core/ListItem';
  import ListItemText from '@material-ui/core/ListItemText';
  
  export default function SimpleListItem() {
    return (
      <div style={{ backgroundColor: '#fff', width: 300 }}>
        <ListItem>
          <ListItemText primary="Primary" />
        </ListItem>
        <ListItem>
          <ListItemText primary="Primary" secondary="Secondary" />
        </ListItem>
        <ListItem dense>
          <ListItemText primary="Primary" />
        </ListItem>
        <ListItem dense>
          <ListItemText primary="Primary" secondary="Secondary" />
        </ListItem>
        <ListItem selected>
          <ListItemText primary="Primary" />
        </ListItem>
      </div>
    );
  }
  