microsoft.com/workshop/author/
dhtml/reference/charsets/charset4.asp).
4. Close every tag, whether enclosing or nonenclosing. Enclosing
tags have content within them, like this
This is a paragraph of text inside paragraph tags. To
be XHTML-compliant, it must, and in this case does, have
a closing tag.
Nonenclosing tags do not go around text but still must be
closed, using space-slash at the end, like this

The space before the slash isn??™t required in modern browsers,
but I always add it as it??™s easier to see that the tag is correctly
closed.
5. All tags must be nested correctly. If a tag opens before a preceding
one closes, it must be closed before that preceding one
closes. For example:
It??™s very important to nest tags
correctly.
Here, the strong tag is correctly placed inside the
; it closes
before the containing p tag is closed. A tag enclosed inside
another in this way is said to be nested.
This is wrongly nested
The nesting of these tags is wrong.
strong>
Multiple elements can be nested inside a containing element; a
list nests multiple li elements inside a single ul or ol element,
like this:
XHTML: GIVING STRUCTURE TO CONTENT 15
Because CSS relies on proper nesting in order to target styles
to elements, you have to get this right.
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