This time I will show you how to use title tags and paragraph tags in XHTML, and what are the precautions for using title tags and paragraph tags in XHTML. The following is a practical case. Get up and take a look.

When we write Word documents, we often use titles, such as "Chapter 1", "1.2.1", etc. There is also the concept of title in XHTML syntax. Six levels of titles are defined in XHTML, namely

to

:

<h1>第一级标题</h1>  
<h2>第二级标题</h2>  
<h3>第三级标题</h3>  
<h4>第四级标题</h4>  
<h5>第五级标题</h5>  
<h6>第六级标题</h6>

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Use of titles

In XHTML documents, titles are very important, search
IndexEngine uses titles to index the structure and content of your web pages. We must be good at using titles to identify our document hierarchy. Among the titles, the first level title is the highest, and then decreases in sequence. Generally speaking, in XHTML documents, the title applies to the following places in the document (within the tag):
According to the website level:

<h1>定义网站标题
<h2>定义网站导航或者栏目
<h3>定义文章标题

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According to the website content:

<h1>定义网站标题
<h2>定义文章标题
<h3>定义栏目标题

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For h4 to h6 titles larger than h3, you can choose them in appropriate places, such as copyright statements or disclaimer notices and other relatively important places.

Also please note that the levels must be decreasing. The level below h1 should be h2, and then h3...

Some suggestions for using titles
Since h1 names the core content of the entire page, generally h1 can only appear once (this is not absolutely the case, but it must not appear multiple times) and used in the most emphasized part of the article. Therefore, if for a specific content page, h1 is often used in the title of the article to highlight the importance of the article, such as this site:

<h1>XHTML 标题<h1>

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At this time, whether the website title (website logo) uses h1 again will depend on the actual situation. It depends.

Title usage
ExerciseUse
EditorOpen our learning document 1.html file, copy the above

to

tags to< ;body> tag:

  
<h1>第一级标题</h1>  
<h2>第二级标题</h2>  
<h3>第三级标题</h3>  
<h4>第四级标题</h4>  
<h5>第五级标题</h5>  
<h6>第六级标题</h6>  
hi~你好！
  

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Save and open the 1.html file with a browser (if it is already open, click the browser refresh button to reload the document, the same below, no further details)

Paragraph p tag

In XHTML, a paragraph is defined through the

tag.
XHTML paragraph
Paragraph tag example:

<p>这是一个段落。</p>

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In actual production work, we use a large number of

paragraph tags.

After adding a paragraph tag to the text, the browser will automatically add a paragraph break to the text. But instead of relying on the empty

to form a blank line, we should use the
line break tag.

Line break

In XHTML documents, the title or paragraph tag only provides a line break tag. If we need a blank line or multiple line breaks, we need a line break tag
. In XHTML, hitting the Enter key to break a new line when editing Word is invalid, and the browser will ignore the new line gap generated in this way.
Example:

<p>这是一些内容</p>  
<br /><br />  
<p>这是另一些内容</p>

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Since the line break tag only informs the browser that this place needs a line break, but has no substantive content, this tag does not appear in pairs, and a
only breaks the line. Once, multiple line breaks are required, please enter multiple
tags.

If the
tag is inserted in

, it will also produce a line break effect.

or
?
Although we can still achieve line breaks using
, that is the result of the browser being compatible with the HTML4.0 specification.
In the XHTML specification, for tags that are not paired, you only need to add a space after the end of the content, and then use /> to close the tag, such as
and and other tags.
So it's
instead of
or
.

I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

Related reading:

How to use img image tag in HTML/XHTML

In responsive framework , How to deal with the automatic line wrapping of the table header

##How to make the Table display borders

The above is the detailed content of How to use title tags and paragraph tags in XHTML. For more information, please follow other related articles on the PHP Chinese website!