content: import React from 'react';
  import PropTypes from 'prop-types';
  import { withStyles } from '@material-ui/core/styles';
  import Typography from '@material-ui/core/Typography';
  import Slider from '@material-ui/lab/Slider';
  
  const styles = {
    root: {
      width: 300,
    },
    slider: {
      padding: '22px 0px',
    },
  };
  
  class SimpleSlider extends React.Component {
    state = {
      value: 50,
    };
  
    handleChange = (event, value) => {
      this.setState({ value });
    };
  
    render() {
      const { classes } = this.props;
      const { value } = this.state;
  
      return (
        <div className={classes.root}>
          <Typography id="label">Slider label</Typography>
          <Slider
            classes={{ container: classes.slider }}
            value={value}
            aria-labelledby="label"
            onChange={this.handleChange}
          />
        </div>
      );
    }
  }
  
  SimpleSlider.propTypes = {
    classes: PropTypes.object.isRequired,
  };
  
  export default withStyles(styles)(SimpleSlider);
  