简单教程
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代码编辑器：
<h4>Image with no margins:</h4> <p><img src="/static/i/img1.jpg" alt="Smiley face" width="120" align="middle"> This is some text. This is some text. This is some text.</p> <h4>Image with 50px margins on left and right sides:</h4> <p><img src="/static/i/img1.jpg" alt="Smiley face" width="120" align="middle" style="margin:0px 50px">This is some text. This is some text. This is some text.</p> <footer>简单教程，简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>
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