You’ve already seen how HTML pages
are created using tags. I want to stop briefly and discuss attributes as well.
An attribute is an additional bit of information that somehow affects the
behavior of a tag. Attributes are included inside the opening tag in a pair.
Here’s an example.
<tag attribute=”value”>
Some attributes can be used with
nearly any tag; others are highly specific. One attribute that can be used with
nearly any tag is style. By including the style attribute in a tag, you can
include one or more style rules within a tag itself. Here’s an example using
the
<h1 style=”font-family: verdana,
sans- serif;”> heading :/h1>
The style attribute of the
<h1> tag contains a style
declaration. All style declarations follow this same basic pattern, with the
property on the left and the value associated with that property on the right. The
rule ends with a semicolon, and you can include more than one in a style
attribute by placing commas between them,. If you’re only including one rule in
the style attribute, the semicolons optical, but it’s a good idea to include
it. In the preceding example, the property is font-family, and the value is
verdana, sans-serif. This attribute modifies the standard <h1> tag by
changing the font to verdana, and if the user doesn’t have that font installed
on his system, whichever sans-serif font the browser selects. (sans-serif fonts
are those that do not include serifs, the small lines at the ends of
characters).
There are many, many properties
that can be used in style declarations. As I’ve already said, putting a
declaration into a style attribute is just one of several ways that you can
apply styles to your documents.
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