css:
<style>
    /* 公共弹出层 */
    .popWrap{position: fixed;left: 0;top: 0; width: 100%;height: 100%;z-index: 1000000;}
    .popMask{width:100%;height:100%;background-color:#ddd;filter:Alpha(opacity=50);-moz-opacity:0.5;opacity:0.5; }
    .popMask iframe,.popMain .popCont iframe{ width: 100%;height: 100%;border: 0 none; }
    .popMain{ position: absolute;left: 50%;top: 50%;background-color: #fff;z-index: 1000001; border: 1px solid #2d2d2d;}
    .popMain .popTit { background-color: #2d2d2d;color: #fff;font-size: 12px;height: 28px;line-height: 28px;padding-left: 12px;padding-right: 12px;}
    .popMain .popTit .close{ font-family: iconfont; font-size: 12px;cursor: pointer;color: #fff; }
    .popMain .popTit .close:hover{ color: #fff; }
    .popMain .popCont {}
    .popMain .popCont .popLoading { margin: 10px ;}
</style>

html:

<button id="btnAdd" class="add">添加</button>
<div id="popup" style="display: none;">
    <div class="popLoading">加载中...</div>
    <h1>welcome</h1>
    <button id="btnOpen">打开</button>
    <button id="btnCancle">取消</button>
</div>
<div class="popup1" style="display: none;">
    <h1>hello world</h1>
    <button id="btnOpen1">打开1</button>
</div>
<iframe src="" frameborder="0" scrolling="0" id="iframe" style="display: none;"></iframe>

<script>

$(function(){

    $(".add").click(function(){
        $("#popup").popShow({
            url : "",
            title : "编辑",
            width : 800,
            height: 700
        });
    });

    $("#btnOpen").delegate("","click",function(){
        $(".popup1").popShow({
            url : "",
            title : "编辑111111",
            width : 600,
            height: 500
        });
    });

    $("#btnOpen1").delegate("","click",function(){
        $("#iframe").popShow({
            url : "https://www.baidu.com",
            title : "详情页"
        });
    });


});

</script>
以下为插件内容：

(function($){

$.fn.popShow = function (opitons) {
     var defaults = {
         url: "",
         title: "",
         width: "800",
         height: "600"
     };
     var settings = $.extend({}, defaults, opitons);
     this.each(function () {
         var tac = $(this),
             url = settings.url,
             title = settings.title,
             width = settings.width,
             height = settings.height;
         var tag = $(‘<div class="popWrap"><div class="popMask" ><iframe scrolling="no"src="http://www.mamicode.com/about:blank"></iframe></div><div class="popMain" style="width: ‘ + width + ‘px;height: ‘ + height + ‘px;margin-left:-‘ + width / 2 + ‘px;margin-top:-‘ + height / 2 + ‘px"><div class="popTit"><a class="close fr">&#xe606;</a><span>‘ + (title ? title : ‘‘) + ‘</span></div><div class="popCont"></div></div></div>‘).appendTo("body");

         tag.find(".close").click(function () {
             tac.popHide();
         });
         tag.find(".popCont").append($(this).show());
         if ($.trim(url).length != 0) {
             tac.prop("src", url);
         }
         return this;
     });
 };
 //关闭弹窗
 $.fn.popHide = function () {
     var tab = $(this).closest(‘.popWrap‘);
     $(this).hide().appendTo(‘body‘);
     tab.remove();
     return this;
 };

})(jQuery);

jquery拓展插件-popup弹窗