jquery实现图片跟随鼠标功能

(function(){
    var $node;
    $node = $("<div style=‘position: absolute;‘ id=‘movePic‘><img src=‘https://imgsa.baidu.com/forum/w%3D580/sign=f9458d402da446237ecaa56aa8227246/01d6ecfe9925bc31c807f6a253df8db1cb137051.jpg‘ height=‘30px‘ width=‘30px‘>nice job</div>");
    $("body").after($node);
    $("body").mousemove(function (e) {
        $node.css("left", e.pageX + 20);
        $node.css("top", e.pageY + 20);
    });
    $("body").hover(function () {
        $node.show();
    }, function () {
        $node.hide();
    });
})()