1, <h1> This is a header </ h1>, a total of six title
2, <p> This is a paragraph </ p>
3, <a href="www.baidu.com"> this is a link </a>
4、<img src="img/logo.png" width="285" height="39" />
5、<br>、<br />换行
6, <hr>, <hr /> tag creates a horizontal line in an HTML page
7, <! - This is a comment ->
8, <b> This text is bold </ b>
9, <strong> This text is bold </ strong>
10, <i> in the text italic </ i>
11, <em> when the text in italics </ em>
12, <big> This text is an enlarged </ big>
13, <small> This text is reduced </ small>
14, <sub> this text contains subscript </ sub>
15, <sup> this text contains superscript </ sup>
16, <pre> blank lines and spaces are controlled in accordance with the output format allowing format output tag </ pre>
17, <code> computer output </ code>
18, <kbd> keyboard </ kbd>
19, <samp> computer code samples </ samp>
20, <tt> typewriter text </ tt>
21, <var> Computer Variable </ var>
22, <address> write address </ address> in the HTML file
23, <abbr title = "Acronym"> Abbreviations </ abbr>
24, <acronym title = "Acronym"> Abbreviations </ acronym>
25, <bdo dir = "rtl"> text of the paragraph right to left. </ Bdo>
26, <q> define a short references cited aphorisms </ q>
27, <del> deleted the word crossed out </ del> on the word
28, <ins> to the word underlined </ ins>
29, <blockquote cite = "url"> to define a reference length </ blockquote>
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