the id selector is more specific than the element selector
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en'>
<head>
<title>Specificity</title>
<style rel='stylesheet' type='text/css'>
body {
font-size: 24px;
}
p#none {
background: red;
}
p {
background: yellow;
}
</style>
</head>
<body>
<p>
This paragraph has a yellow background.
</p>
<p id='none'>
the id selector is more specific than the element selector.
</p>
</body>
</html>