摘要：IE6中，设定一个div的背景图片时，无论将高度设定到多小，div高度总为4px。而IE7和FF中却正常。解决办法：设定font-size:1px; 阅读全文

摘要：//自定义扩展$.fn.center = function () { this.css("position","absolute"); this.css("top", ( $(window).height() - this.height() ) / 2+$(window).scrollTop() + "px"); this.css("left", ( $(window).width() - this.width() ) / 2+$(window).scrollLeft() + "px& 阅读全文