html5 Common single tags: 1. br, defines line breaks; 2. hr, defines horizontal lines; 3. img, defines images; 4. input, defines input boxes, etc. Common double tags: 1. html, defines the HTML document; 2. head, defines the document header; 3. p; 4. span; 5. div; 6. h1, etc.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
HTML tags are divided into double tags and single tags. Single tags are composed of one tag (such as
html5 common odd and even tags
Tag category
Common Tag
Single tag
##
(define HTML document), (define document header), (define document title), <body>, <table>, <tr>, <td> ;, <span>, <p>, <form>, <h1>, <h2>, <h3>, <h4>, <h5>, <h6>, <object> ;, <style>, <b>, <u>, <strong>, <i>, <div>, <a>, <script>, <center><td></td>
<td style="word-break: break-all;"></td>
</tr>
</tbody>Extended knowledge: html5 tags</table>
<p><strong>Hypertext Markup Language (foreign language abbreviation: HTML) markup tags are often called HTML tags, and HTML tags are The most basic unit in the HTML language, the HTML tag is the most important component of HTML (an application under the Standard Universal Markup Language). </strong></p>The case of HTML tags is irrelevant. For example, "body" <body> and <BODY> have the same meaning. It is recommended to use lowercase. <p></p>Features: <p></p>
<p></p>Keywords surrounded by angle brackets, such as <html><ul style="list-style-type: disc;">
<li>
<p></p> usually appear in pairs For example, <div> and </div></li>
<li>
<p></p>The first tag in the tag pair is the start tag, and the second tag is the end tag;</li>
<li>
<p></p>Opening and closing tags are also known as opening tags and closing tags. </li>
<li>
<p></p>There are also tags presented separately, such as: <img src="Baidu Encyclopedia.jpg" />, etc. </li>
<li>
<p></p> Tags that generally appear in pairs have their content in the middle of the two tags. If the label is presented separately, the value is assigned in the label attribute. Such as <h1>title</h1> and <input type="text" value="button" />. </li>
<li>
<p></p>The content of the web page must be in the <html> tag, and the title, character format, language, compatibility, keywords, description and other information are displayed in the <head> tag, and The content to be displayed on the web page needs to be nested in the <body> tag. Sometimes code written in non-standard formats can be displayed normally, but as a professional quality, formal writing habits should be developed. </li>
<li>
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