(PCC)::[How-to-use-HTML-with-CSS-using-the-class-attribute]::[html]
<!DOCTYPE html>
<html>
<head>
<style>
p.error {
color: red;
}
</style>
</head>
<body>
<p>This is a paragraph.</p>
<p>This is a paragraph.</p>
<p class="error">I am different.</p>
<p>This is a paragraph.</p>
<p class="error">I am different too.</p>
</body>
</html>
This is a paragraph.
This is a paragraph.
I am different.
This is a paragraph.
I am different too.