// 鼠标特效，心
    window.onclick = function(event) {
        var heart = document.createElement("b");
        heart.onselectstart = new Function('event.returnValue=false');
        document.body.appendChild(heart).innerHTML = "❤";
        heart.style.cssText = "position: fixed;left:-100%;";
        var f = 16, // 字体大小
            x = event.clientX - f / 2, // 横坐标
            y = event.clientY - f, // 纵坐标
            c = randomColor(), // 随机颜色
            a = 1, // 透明度
            s = 1.2; // 放大缩小
        var timer = setInterval(function() {
            if (a <= 0) {
                document.body.removeChild(heart);
                clearInterval(timer);
            } else {
                heart.style.cssText = "font-size:16px;cursor: default;position: fixed;color:" + c + ";left:" + x + "px;top:" + y + "px;opacity:" + a + ";transform:scale(" + s + ");";
                y--;
                a -= 0.016;
                s += 0.002;
            }
        }, 12)
    }
    // 随机颜色
    function randomColor() {
        return "rgb(" + (~~(Math.random() * 255)) + "," + (~~(Math.random() * 255)) + "," + (~~(Math.random() * 255)) + ")";
    }





#Snow{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    background: rgba(255,255,240,0.1);
    pointer-events: none;
}


/*推荐和反对*/
#div_digg {
    padding: 10px;
    position: fixed;
    _position: absolute;
    z-index: 1000;
    bottom: 20px;
    right: 0;
    _right: 17px;
    border: 1px solid #D9DBE1;
    background-color: #FFFFFF;
    filter: alpha(Opacity=80);
    -moz-opacity: 1;
    opacity: 1;
}

.icon_favorite {
    background: transparent url('https://files.cnblogs.com/files/jackson0714/kj.gif') no-repeat 0 0;
    padding-left: 16px;
}

/* 定制返回顶部按键 */
#back-to-top {
    background-color: #87cefe;
    bottom: 0;
    box-shadow: 0 0 6px #bdc3c7;
    color: #444444;
    padding: 10px 10px;
    position: fixed;
    right: 50px;
    cursor: pointer;
    border-radius: 30px;
}