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Все равно, в массив значение добавляется, но бг не меняется

import React from 'react'
import './Layout.scss'
import NavBar from '../components/navBar/NavBar'
import Footer from '../components/footer/Footer'

class Layout extends React.Component {
    state = {
        isHovered: false,
        list: [
            {name: 'Behance', id: 1, background: 'blue'},
            {name: 'Dribbble', id: 2, background: 'red'},
            {name: 'Instagram', id: 3, background: 'green'},
        ],
        cls : [
            'Layout'
        ]

    }

    handleHover = () => {
        this.setState(prevState => ({
            isHovered: !prevState.isHovered
        }));
    }
    
    

    render (){
        return (
            <div className = {this.state.cls.join('')}>
                <NavBar/>
                <Footer
                    list = {this.state.list}
                    hover = {this.handleHover = this.handleHover.bind(this)}
                    cls = {this.state.cls}
                    handleState = {this.handleState}
                />
            </div>
        )
    }
}

export default Layout