ываываыв

export default class LandingPage extends Component {

    constructor(props) {
        super(props)
        this.toStartRef = createRef()
    }

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

    componentWillUnmount() {
        window.removeEventListener('scroll', this.handleScroll);
    }
    // Show to start button when scrolling down
    handleScroll = (event) => {
        if (event.currentTarget.pageYOffset > 300){

        }
        else{

        }
    }

    // Hadling click on to start button
    onStartClick = (event) => {
        window.scrollTo({
            top: 0,
            behavior: 'smooth',
          })
    }

    render() {
        return (
            <div className="container-fluid p-0">
                <Navbar />
				//вот компонента
                <ToStartButton />
                <AboutProjectSection />
                <AboutMeSection />
                <MyProjectsSection />
                <GithubSection />
                <MyResumeSection />
                <MyContactsSection />
            </div>
        );
    }
}

class ToStartButton extends Component {
    render() {
        return (
            <div className="to-start-button" style={{display:'none'}} >
                <img src="https://img.icons8.com/wired/64/000000/circled-chevron-up.png" />
            </div>
        );
    }
}