如何在react中按百分比滚动？

import React, { Component } from 'react';

class PercentageScroll extends Component {
  constructor(props) {
    super(props);
    this.state = {
      scrollPosition: 0
    };
    this.handleScroll = this.handleScroll.bind(this);
  }

  componentDidMount() {
    this.scrollContainer.addEventListener('scroll', this.handleScroll);
  }

  componentWillUnmount() {
    this.scrollContainer.removeEventListener('scroll', this.handleScroll);
  }

  handleScroll(event) {
    const scrollTop = event.target.scrollTop;
    const scrollHeight = event.target.scrollHeight;
    const clientHeight = event.target.clientHeight;

    const scrollPercentage = (scrollTop / (scrollHeight - clientHeight)) * 100;

    this.setState({
      scrollPosition: scrollPercentage
    });
  }

  render() {
    const { scrollPosition } = this.state;

    return (
      <div
        ref={(ref) => (this.scrollContainer = ref)}
        style={{ height: '300px', overflow: 'scroll' }}
      >
        <div style={{ height: '200%' }}>
          {/* 滚动内容 */}
        </div>
        <div
          style={{
            position: 'fixed',
            top: 0,
            left: 0,
            width: '100%',
            height: '5px',
            backgroundColor: 'blue',
            zIndex: 999
          }}
        >
          <div
            style={{
              width: `${scrollPosition}%`,
              height: '100%',
              backgroundColor: 'red'
            }}
          />
        </div>
      </div>
    );
  }
}

export default PercentageScroll;