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XHTML Tutorial - "sub" and "sup" Tags/Elements
(Continued from previous topic...)
What Are "sub" and "sup" Tags/Elements?
"sub" and "sup" elements are inline elements that you can use to
specify text to be treated as subscript and superscript respectively.
Here are basic rules about "sub" and "sup" elements:
- "sub" and "sup" elements are inline elements.
- "sub" and "sup" elements can not be used at block level.
- Contents of "sub" elements will be displayed in smaller font size,
and positioned lower than normal text.
- Contents of "sup" elements will be displayed in smaller font size,
and positioned higher than normal text.
Here is a good tutorial example of "sub" and sup" elements:
<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>SUB and SUP Elements</title>
</head>
<body>
<p>The most popular algebra formula:<br/>
<code>(a+b)<sup>2</sup>
= a<sup>2</sup> + 2ab + b<sup>2</sup></code></p>
<p>The right sided derivative:<br/>
<code>f'(x)
= <sub>lim(dx->0)</sub>((f(x+dx)-f(x))/dx)</code></p>
</body>
</html>
If you save the above document as sub_and_sup.html, and view it with
Internet Explorer, you will see that mathematical formulas are displayed
nicely with "sub" and "sup" elements as shown below:
(Continued on next topic...)
- What Are Inline Elements?
- What Are Commonly Used Inline Elements?
- What Is a "strong" Tag/Element?
- What Is an "em" Tag/Element?
- What Is an "code" Tag/Element?
- What Are "sub" and "sup" Tags/Elements?
- What Are "del" and "ins" Tags/Elements?
- What Are "big" and "small" Tags/Elements?
- What Is a "br" Tag/Element?
- What Is a "script" Tag/Element?
- What Are Other Inline Elements?
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