The tags not supported in html5 are: 1. acronym, used to define acronyms, which can be replaced by abbr; 2. basefont, which can be replaced by css styles; 3. applet, which can be replaced by object; 4. dir , defines the directory list, which can be replaced by ul; 5. big, defines large text, etc.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
Unsupported tags in html5
##Tags | Description |
|
Not supported in HTML 5. Define acronym.
|
|
|
Not supported in HTML 5. Please use CSS instead.
|
|
Not supported in HTML 5. Define large text.
|
|
Not supported in HTML 5. Define centered text.
|
|
Not supported in HTML 5. Define directory list.
|
|
Not supported in HTML 5.
|
|
Not supported in HTML 5. Define sub-window (frame).
|
|
|
Not supported in HTML 5. Define a single-line input field.
|
<![CDATA[<td style="word-break: break-all;"></td>
<td>Not supported in HTML 5. <span class="deprecated">Define the noframe part. </span>
</td>
</tr>
<tr><s><td style="word-break: break-all;"></td>
<td>Not supported in HTML 5. <span class="deprecated">Define strikethrough text. </span>
</td>
</tr>
<tr><strike><td style="word-break: break-all;"></td>
<td>Not supported in HTML 5. <span class="deprecated">Define strikethrough text. </span>
</td>
</tr>
<tr><tt><td style="word-break: break-all;"></td>
<td>Not supported in HTML 5. <span class="deprecated">Define typewriter text. </span>
</td>
</tr>
<tr><u><td style="word-break: break-all;"></td>
<td>Not supported in HTML 5. <span class="deprecated">Define underlined text. </span>
</td>
</tr>
<tr><xmp><td style="word-break: break-all;"></td>
<td>Not supported in HTML 5. <span class="deprecated">Define preformatted text. </span>
</td>
</tr>
</tbody></table>Among them, some tags can be replaced by other tags<p></p>
<ul style="list-style-type: disc;">
<li>abbr replaces acronym (used to represent abbreviations)<p></p>
</li>
<li>object replaces applet<p></p>
</li>
<li>ul replaces dir<p></p>
</li>
</ul>
<p style="text-align: left;">Extended knowledge: Unsupported attributes<strong></strong></p>Many expressive attributes have also been removed by the new specification, as follows: <p></p>
<ul style="list-style-type: disc;">
<li>align<p></p>
</li>
<li>On the body tag The link, vlink, alink, text attributes<p></p>
</li>
<li>bgcolor<p></p>
</li>##height and width<li><p></p></li>iframe The scrolling attribute on the element<li><p></p></li>valign<li><p></p></li>hspace and vspace<li><p></p></li>cellpadding on the table tag , cellspacing and border attributes<li><p></p></li>profile attribute on header tag<li><p></p></li>target attribute on link tag a<li><p></p></li>The longdesc attribute of img and iframe elements<li><p></p></li>Related recommendations: "</ul>html video tutorial<p style="text-align: left;">"<a href="http://www.php.cn/course/list/11.html" target="_blank" textvalue="html视频教程"></a></p><p>The above is the detailed content of What are the tags that are not supported in html5?. For more information, please follow other related articles on the PHP Chinese website!</p></div><div class="nphpQianMsg"><a href="javascript:void(0);">html5</a> <a href="javascript:void(0);">css</a> <a href="javascript:void(0);">html</a> <a href="javascript:void(0);">Object</a> <a href="javascript:void(0);">border</a> <a href="javascript:void(0);">ul</a><div class="clear"></div></div><div class="nphpQianSheng"><span>Statement：</span><div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn</div></div></div><div class="nphpSytBox"><span>Previous article：<a class="dBlack" title="What is the usage of box-shadow in css3" href="https://m.php.cn/faq/490034.html">What is the usage of box-shadow in css3</a></span><span>Next article：<a class="dBlack" title="What is the usage of box-shadow in css3" href="https://m.php.cn/faq/490037.html">What is the usage of box-shadow in css3</a></span></div><div class="nphpSytBox2"><div class="nphpZbktTitle"><h2>Related articles</h2><em><a href="https://m.php.cn/article.html" class="bBlack"><i>See more</i><b></b></a></em><div class="clear"></div></div><ul class="nphpXgwzList"><li><b></b><a href="https://m.php.cn/faq/489928.html" title="What does section mean in html5" class="aBlack">What does section mean in html5</a><div class="clear"></div></li><li><b></b><a href="https://m.php.cn/faq/489933.html" title="What are the inline tags in html5" class="aBlack">What are the inline tags in html5</a><div class="clear"></div></li><li><b></b><a href="https://m.php.cn/faq/489957.html" title="What is the difference between class and id in html5" class="aBlack">What is the difference between class and id in html5</a><div class="clear"></div></li><li><b></b><a href="https://m.php.cn/faq/489958.html" title="What is the usage of output in html5" class="aBlack">What is the usage of output in html5</a><div class="clear"></div></li><li><b></b><a href="https://m.php.cn/faq/489993.html" title="What is html5 line break mark" class="aBlack">What is html5 line break mark</a><div class="clear"></div></li><li><b></b><a href="https://m.php.cn/faq/490028.html" title="When was html5 released?" class="aBlack">When was html5 released?</a><div class="clear"></div></li></ul></div></div><footer><div class="footer"><div class="footertop"><img src="/static/imghwm/logo.png" alt=""><p>Public welfare online PHP training，Help PHP learners grow quickly！</p></div><div class="footermid"><a href="https://m.php.cn/about/us.html">About us</a><a href="https://m.php.cn/about/disclaimer.html">Disclaimer</a><a href="https://m.php.cn/update/article_0_1.html">Sitemap</a></div><div class="footerbottom"><p> © php.cn All rights reserved
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