代码如下：
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Tabs</title>
<style type="text/css">
/* Remove margin padding */
body,h1,h2,h3,h4,h5,h6,hr,p,blockquote,dl,dt,dd,ul,ol,li,pre,form,fieldset,legend,button,input,textarea,th,td { margin:0; padding:0; }
/* Default Font */
body,button,input,select,textarea { font:12px/1.5 \5b8b\4f53,arial,sans-serif; }
h1,h2,h3,h4,h5,h6 { font-size:100%; }
address,cite,dfn,em,var { font-style:normal; }
code,kbd,pre,samp { font-family:courier new,courier,monospace; }
small { font-size:12px; }
ul,ol { list-style:none; }
a { text-decoration:none; }
a:hover { text-decoration:underline; }
sup { vertical-align:text-top; }
sub { vertical-align:text-bottom; }
legend { color:#000; }
fieldset,img { border:0; }
button,input,select,textarea{ font-size:100%; }
table { border-collapse:collapse; border-spacing:0; }
.col-main{ float:left; width:100%; min-height:1px; }
.col-sub,.col-extra { float:left; }
.layout:after,.main-wrap:after,.col-sub:after,.col-extra:after { content:'\20'; display:block; height:0; clear:both; }
.layout,.main-wrap,.col-sub,.col-extra { zoom:1; }
/* Common Features */
.hidden { display:none; }
.invisible { visibility:hidden; }
/* Remove Float */
.clear { display:block; height:0; overflow:hidden; clear:both; }
.clearfix:after { content:'\20'; display:block; height:0; clear:both; }
.clearfix { *zoom:1; }
/* For non ie browsers also display the vertical scroll bar by default, to prevent the flicker caused by the scroll bar */
html { overflow-y:scroll; }
/* Default link styles */
a:link {color: #003399; }
a:visited {color: #123689;}
a:hover {color: #FF6600;}
</style>
</head>
<body>
<style type="text/css">
body { height:1000px; }
.dialog-wrap, .dialog { display:none; }
.dialog-wrap { position:absolute; top:0px; left:0px; width:100%; z-index:99; background:#000; }
.dialog {
border:10px;
background:url(images/welcome91981.png) no-repeat;
z-index:199;
position:fixed;
_position:absolute;
width:451px;
height:313px;
top:50%;
left:50%;
margin:-156px 0px 0px -225px;
border-radius:10px;text-align:left;
}
.dialog .city-box { position:relative; width:100%; height:100% }
.dialog .close { position:absolute; width:18px; height:18px; top:16px; right:16px; z-index:205; }
.dialog .close a { display:block; width:100%; height:100%; }
.cityBox{position:absolute;cursor:pointer;top:143px;left:212px;height:30px;line-height:30px;font-size:16px;color:#f4396d;padding:0 30px 0 10px;display:inline-block; z-index:200; }
.cityBox span{width:90px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;display:inline-block}
.hotCityBox{position:absolute;width:272px;top:160px;left:170px;display:none;z-index:200;}
.togle{color:#fff;position:absolute;left:50%;font-size:28px;z-index:200;}
.togleborder{position:absolute;left:50%;font-size:28px;color:#ddd;top:3px;z-index:200;}
.hotCityList{background:#fff;border-radius:5px;box-shadow:1px 1px 1px #333;top:22px;position:absolute;width:270px;border:1px solid #ddd; z-index:202;}
.hotCityList p{padding:5px 0}
.hotCityList p a{padding:0 8px;height:22px;line-height:22px;color:#333;font-size:14px;margin:3px 5px;text-align:center;display:inline-block;float:left}
.hotCityList p a:hover{background:#f55583;color:#fff;text-decoration:none}
.moreCity{border-top:1px solid #c6c6c6;height:30px;line-height:30px;text-align:right;}
.moreCity a{color:#f55583;font-size:14px;margin-right:10px}
.cityConfirm{position:absolute;cursor:pointer;width:168px;height:48px;left:137px;bottom:22px;}
.cityConfirm a{width:168px;height:48px;display:block}
.evet { display:none; position:absolute; top:0px; left:0px; width:100%; height:100%; z-index:198; }
</style>
<div class="dialog-wrap"></div>
<div class="dialog">
<div class="city-box">
<div class="close"><a title="关闭" href="javascript：close_dialog();" rel="external nofollow" ></a></div>
<div class="cityBox"><span>北京</span></div>
<div class="hotCityBox">
<div class="togleborder">◊</div>
<div class="togle">♦</div>
<div class="hotCityList">
<p class="clearfix">
<a href="">北京</a>
<a href="">上海</a>
<a href="">天津</a>
<a href="">杭州</a>
<a href="">西安</a>
<a href="">成都</a>
<a href="">郑州</a>
<a href="">厦门</a>
<a href="">青岛</a>
<a href="">深圳</a>
<a href="">太原</a>
<a href="">重庆</a>
<a href="">武汉</a>
<a href="">南京</a>
<a href="">广州</a>
<a href="">沈阳</a>
<a href="">济南</a>
<a href="">哈尔滨</a>
</p>
<div class="moreCity"><a href="">更多城市>></a></div>
</div>
</div>
<div class="cityConfirm"><a title="开始团购" href=""></a></div>
<div class="evet"></div>
</div>
</div>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
function dialog(){
var h = $('body').height();
$('.dialog-wrap').css({'height':h,'opacity':0.5,'display':'block'});
$('.dialog').show();
}
function close_dialog(){
$('.dialog, .dialog-wrap').hide();
}
$('.cityBox').click(function(){
$('.hotCityBox, .evet').show();
});
$('.evet, .dialog-wrap').click(function(){
$('.hotCityBox, .evet').hide();
$('.evet').hide();
});
//dialog();
</script>
<p onClick="dialog()" style="cursor:pointer">点击这里看效果</p>
<br>
我是文字我是文字文字我字我是文字我是文字
</body>
</html>
