子比美化顶部添加彩色进度条

演示图

CSS

/*进度条加载显示*/#percentageCounter{position:fixed; left:0; top:0; height:3px; z-index:99999; background-image: linear-gradient(to right, #339933,#FF6666);border-radius:5px;}

JS

//进度条加载显示
$(window).scroll(function() {
    var a = $(window).scrollTop(),
    c = $(document).height(),
    b = $(window).height();
    scrollPercent = a / (c - b) * 100;
    scrollPercent = scrollPercent.toFixed(1);
    $("#percentageCounter").css({
        width: scrollPercent + "%"
    });
}).trigger("scroll");

  

在主题目录header.php中，添加以下代码，放在body标签下（最后一行）