<html>
<head>
<style type="text/css">
#sidebar p {
font-family: Verdana;
font-size: .9em; }
#sidebar .intro {
font-family: Georgia;
font-size: 1.25em;
color:red;
}
</style>
</head>
<body>
<div id=”sidebar”>
<p class=”intro”>
As you can see, the more CSS styles you create, the greater the potential for formatting
snafus. For example, you may create a class style specifying a particular
font and font size, but when you apply the style to a paragraph, nothing happens!
This kind of problem is usually related to the cascade. Even though you may think
that directly applying a class to a tag should apply the class’s formatting properties,
it may not if there’s a style with greater specificity.
You have a couple of options for dealing with this kind of problem. First, you can
use !important (as described in the box above) to make sure a property always
applies. The !important approach is a bit heavy handed, though, since it’s hard to
predict that you’ll never, ever, want to overrule an !important property someday.
Read on for two other cascade-tweaking solutions.
</p>
</div>
</body>
</html>
the #sidebar p style has a specificity of 101 (100 for the ID, and 1 for the tag
selector), while the .intro style has a specificity of 10 (10 points for a class selector). Since 101 is greater than 10, #sidebar p takes precedence. Changing .intro to #sidebar .intro changes its specificity to 110.
Even though I have change this my result is not coming
Can anyone explain me.
output: should be in red color, font-size-1.25em and font-family -Georgia
The quotes around the ID
sidebarand classnameintroare invalid.”sidebar”should be"sidebar".The browser interprets the ID as
”sidebar”and notsidebar, therefore, none of your rules even match.