自己编写jquery插件

Posted 2020-10-22 Amy-WebFrontEnd

http://blog.csdn.net/chenxi1025/article/details/52222327

jQuery.fn.center = function () {
     this.css("top", ( $("body").height() - this.outerHeight() ) / 2+$(window).scrollTop() + "px");
     return this;
}

$(".hint").center();