css：
代码如下:
*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
body{font:12px/180% arial, helvetica, sans-serif, 新宋体;}
/* demo */
.demo{width:800px;margin:0 auto;}
.demo div{margin:40px 0 0 0;}
html：
代码如下:
<div class=demo>
<div>
<iframe name=weather_inc src=http://i.tianqi.com/index.php?c=code&id=2&num=5 width=650 height=70 frameborder=0 marginwidth=0 marginheight=0 scrolling=no></iframe>
</div>
<div>
<iframe name=weather_inc src=http://i.tianqi.com/index.php?c=code&id=7 style=border:solid 1px red width=225 height=90 frameborder=0 marginwidth=0 marginheight=0 scrolling=no></iframe>
</div>
<div>
<iframe name=weather_inc src=http://i.tianqi.com/index.php?c=code&id=9 width=800 height=60 frameborder=0 marginwidth=0 marginheight=0 scrolling=no></iframe>
</div>
<div>
<iframe name=weather_inc src=http://i.tianqi.com/index.php?c=code&id=11 width=500 height=15 frameborder=0></iframe>
</div>
<div>
<iframe name=weather_inc src=http://i.tianqi.com/index.php?c=code&id=13 width=650 height=221 frameborder=0 marginwidth=0 marginheight=0 scrolling=no></iframe>
</div>
<div>
<iframe name=weather_inc src=http://i.tianqi.com/index.php?c=code&id=19 width=800 height=120 frameborder=0 marginwidth=0 marginheight=0 scrolling=no></iframe>
</div>
</div>
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