29.html

<html>
	<head>
		<style>
			.cin{
				background-color: blueviolet;
				color: darkgray;
				text-align: center;
			}
			.mycim{
				color: chartreuse;
			}
		</style>
	</head>
	<body>
		class selector <br>
		<!--class is a special world in this "cin" can be applied on many paragraph like p an p -->
		<p class="cin mycim">Hello world ... !!!</p>
		<p class=" mycim cin"> Pakistan</p>
		<h1 class="cin"> Heading 1</h1>
		<h2 class="cin"> heaing 2</h2>
	</body>
</html>

<!--in this we use two attribute cin and mycim in clss we can use -->