<!doctype html>
<html>
	<head>
		<title>Class</title>
		<link href="style.css" rel="stylesheet">
	</head>
	<body>
		<h1 class="highlight">This heading will be blue</h1>
		<p>This paragraph will remain black, since it has no class on it.</p>
		<p>So will this one.</p>
		<p class="faded">This paragraph will be faded.</p>
		<p class="highlight faded">This paragraph will be blue and faded, with both classes.</p>
	</body>
</html>
.highlight {
	color: blue;
}

.faded {
	opacity: 33%;
}