如何将在不支持HTML的浏览器中呈现内容包含在标签中？

HTML 标签用于处理不支持<embed>标签的浏览器。<noembed>标签使得提供替代内容来告诉用户他们所缺少的内容变得容易。</p><h2 style="">示例</h2><pre class='brush:php;toolbar:false;'>&lt;!DOCTYPE html&gt; &lt;html&gt; &nbsp; &nbsp;&lt;head&gt; &nbsp; &nbsp; &nbsp; &lt;title&gt;HTML noembed Tag&lt;/title&gt; &nbsp; &nbsp;&lt;/head&gt; &nbsp; &nbsp;&lt;body&gt; &nbsp; &nbsp; &nbsp; &lt;embed src = &quot;/html/yourfile.swf&quot; width = &quot;200&quot; height = &quot;200&quot; &gt; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;noembed&gt;&lt;img src = &quot;yourimage.gif&quot; alt = &quot;Alternative Media&quot; &gt;&lt;/noembed&gt; &nbsp; &nbsp; &nbsp; &lt;/embed&gt; &nbsp; &nbsp;&lt;/body&gt; &lt;/html&gt;</pre></p> <div style="float: right;overflow: hidden;height: 20px;line-height: 16px;font-size: 14px;color:gray;"> 来源：<a href="https://www.tutorialspoint.com/How-to-include-content-to-be-presented-by-browsers-that-do-not-support-the-embed-tag-in-HTML" class="aBlack" 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