0
点赞
收藏
分享

微信扫一扫

动态设置顶部栏,滚动透明,颜色变换(js)

天涯学馆 2021-09-24 阅读 71
    window.onscroll = (event) => {
            let realHeight = document.documentElement.scrollTop || document.body.scrollTop;
            let optatic = 0.8 * (realHeight/142);
            if(optatic <= 0.8 ) {
                this.setState({
                    bg: `rgba(234, 44, 44, ${optatic})`,
                })
            }
        }
举报

相关推荐

0 条评论