If you use a word processor, you must be familiar with the ability to make text bold, italicized, or underlined; these are just three of the ten options available to indicate how text can appear in HTML and XHTML.
Bold Text
Any content enclosed within <b>...</b> element, is displayed in bold as shown in the example below −
Example
<!DOCTYPE html> <html> <head> <title>Bold Text Example</title> </head> <body> <p>The following word uses a <b>bold</b> typeface.</p> </body> </html>
Click Run to see the output.
Italic Text
Any content that is enclosed within <i>...</i> element is displayed in italicized as shown in the example below −
Example
<!DOCTYPE html> <html> <head> <title>Italic Text Example</title> </head> <body> <p>The following word uses a <i>italicized</i> typeface.</p> </body> </html>
Underlined Text
Any content enclosed within <u>...</u> element, is displayed with underline as shown in the example below −
Example
<!DOCTYPE html> <html> <head> <title>Underlined Text Example</title> </head> <body> <p>The following word uses a <u>underlined</u> typeface.</p> </body> </html>
This will produce the output with an underline in the selected text. Click on Edit & Run to see the output.
Strike Text
Any content that is enclosed within <strike>...</strike> element is displayed with strikethrough, which is a thin line through the text as shown in the example below −
Example
<!DOCTYPE html> <html> <head> <title>Strike Text Example</title> </head> <body> <p>The following word uses a <strike>strikethrough</strike> typeface.</p> </body> </html>
We can also use <s>...</s> element for the same.
Monospaced Font
The content enclosed within <tt>...</tt> element is written in monospaced font. Most of the fonts are known as variable-width fonts because different letters are of different widths (for example, the letter 'm' is wider than the letter 'i'). In a monospaced font, however, each letter has the same width.
Example
<!DOCTYPE html> <html> <head> <title>Monospaced Font Example</title> </head> <body> <p>The following word uses a <tt>monospaced</tt> typeface.</p> </body> </html>
Superscript Text
The content enclosed within <sup>...</sup> element is written in superscript; the font size used is the same size as the characters surrounding it but is displayed at half the height of the surrounding characters, giving it a smaller and slightly raised appearance compared to the rest of the text.
Example
<!DOCTYPE html> <html> <head> <title>Superscript Text Example</title> </head> <body> <p>The following word uses a <sup>superscript</sup> typeface. </p> </body> </html>
Subscript Text
The content of a <sub>...</sub> element is written in subscript; the font size used is the same as the characters surrounding it and is displayed half a character's height beneath the other characters. It is typically used for writing things like chemical formulas, where certain characters need to be displayed below the regular text line.
Example
<!DOCTYPE html> <html> <head> <title>Subscript Text Example</title> </head> <body> <p>The following word uses a <sub>subscript</sub> typeface. </p> </body> </html>
Inserted Text
Content that is enclosed within <ins>...</ins> element is displayed as inserted text. Below is an example for that −
Example
<!DOCTYPE html> <html> <head> <title>Inserted Text Example</title> </head> <body> <p>I want to drink <del>cola</del> <ins>wine</ins></p> </body> </html>
If you run the above example the word "cola" will be deleted and "wine" will be inserted.
Deleted Text
Content that is enclosed within <del>...</del> element, is displayed as deleted text. Below is an example for that −
Example
<!DOCTYPE html> <html> <head> <title>Deleted Text Example</title> </head> <body> <p>Hello welcome to <del>Madras</del> <ins>Chennai</ins></p> </body> </html>
If you run the above example the word "Madras" will be deleted and "Chennai" will be inserted.
Larger Text
The content which is enclosed within <big>...</big> element is displayed one font size larger than the rest of the text surrounding it as shown below −
Example
<!DOCTYPE html> <html> <head> <title>Larger Text Example</title> </head> <body> <p>Hello Welcome to <big>Tutorialspoint</big>.</p> </body> </html>
Since we have enclosed Tutorialspoint in the <big> tag it will be appeared in a larger font. Click on Edit & Run to see the output.
Smaller Text
The content which is enclosed within <small>...</small> element is displayed one font size smaller than the rest of the text surrounding it as shown below −
Example
<!DOCTYPE html> <html> <head> <title>Smaller Text Example</title> </head> <body> <p>Hello Welcome to <small>Tutorialspoint</small>.</p> </body> </html>
Since we have enclosed Tutorialspoint in the <small> tag it will be appeared in a smaller font.
Grouping Content
The <div> and <span> elements allow you to group together several elements to create sections or subsections of a page.
For example, you might want to put all of the footnotes on a page within a <div> element to indicate that all of the elements within that <div> element relate to the footnotes. You might then attach a style to this <div> element so that it appears using a special set of style rules.
Example
<!DOCTYPE html>
<html>
<head>
<title>Div Tag Example</title>
</head>
<body>
<div id="menu" align="middle">
<a href="/index.htm">HOME</a> | <a href="/about/contact_us.htm">CONTACT</a> | <a href="/about/index.htm">ABOUT</a>
</div>
<div id="content" align="left" bgcolor="white">
<h5>Content Articles</h5>
<p>Actual content goes here.....</p>
</div>
</body>
</html>
The <span> element, on the other hand, can be used to group inline elements only. So, if you have a part of a sentence or paragraph which you want to group together, you could use the <span> element as follows
Example
<!DOCTYPE html> <html> <head> <title>Span Tag Example</title> </head> <body> <p>This is the example of <span style="color:green">span tag</span> and the <span style="color:red">div tag</span> alongwith CSS</p> </body> </html>
Click on Edit & Run to execute the above program.
标签：...,06,Text,within,element,HTML,enclosed,Example,Formatting From： https://www.cnblogs.com/emanlee/p/18190001