CSS 布局练习

<br><input type="button" value="运行代码"> <input type="button" value="复制代码"> <input type="button" value="另存代码"> 提示：您可以先修改部分代码再运行 <br><br><br><img src="/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9YUhSMGNITTZMeTlwYldGblpYTXVZMjVpYkc5bmN5NWpiMjB2WTI1aWJHOW5jMTlqYjIwdlkyaDVNVEF3TUM5cGJXZGZNUzVxY0djPQ==" alt="CSS 布局练习" border="0" title="CSS 布局练习">(图一)

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