javascript - 当用户滚动到一个元素时，如何删除它的不透明度？

Question

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Answer 1

你只需要稍微调整一下 javascript，

$(window).scroll(function() {
    var i = $(window).scrollTop();
    if(i>200){ // you decide here what to do once the scroll of the page is over 200px (or whatever value you need)
        // hide the background here
        $('.texture-overlay2').hide();
    }else{
        $('.texture-overlay2').show();
    }
});