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<title>CSS自适应宽度圆角按钮 @5key.net</title>
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*{margin:0; padding:0;}
body{padding:10px; font-size:12px;}
h1{margin:0; padding:10px 0; font-size:14px; font-weight:bold;}
a{background:url(http://www.lanrentuku.com/down/js/images/12447749840.gif) left 0; color:#fff; text-decoration:none; height:30px; float:left; cursor:hand; margin:0 5px 0 0;}
a:hover{background:url(http://www.lanrentuku.com/down/js/images/12447749840.gif) left -30px;height:30px;}
a span{background:url(http://www.lanrentuku.com/down/js/images/12447749840.gif) right 0; padding:9px 8px 5px 0; margin:0 0 0 8px; float:left; height:16px;}
a:hover span{background:url(http://www.lanrentuku.com/down/js/images/12447749840.gif) right -30px; color:#000; padding:9px 8px 5px 0; margin:0 0 0 8px; height:16px; }
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<h1><strong>CSS自适应宽度圆角按钮 @5key.net 查找更多代码，请访问：懒人图库 www.lanrentuku.com </strong></h1>
<a href="#"><span>首页</span></a>
<a href="#"><span>不是首页</span></a>
<a href="#"><span>他也许是首页</span></a>
<a href="#"><span>但他一定不是首页</span></a>
<a href="#"><span>好了，就这样把。别扯了~</span></a>
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标签：www,http,margin,padding,lanrentuku,按钮,宽度,com,CSS From： https://blog.51cto.com/haibo0668/5969097