EXAMPLE
Run 
<!DOCTYPE html>

<head>
	<title>CSS background-image</title>
	<style type="text/css">
		p {
		  font-size: 1.7em;
		  color: #1c8c0f;
		  background-image: none;
		  background-color: transparent;
		}
		
		div {
		  background-image: none;
		}
		
		.catsandstars {
		  background-image:
		      url("https://mdn.mozillademos.org/files/11991/startransparent.gif"),
		      url("https://mdn.mozillademos.org/files/7693/catfront.png");
		  background-color: transparent;
		}
	</style>
</head>

<body>
	<div>
		<p class="catsandstars">This paragraph is full of cats
			<br />and stars.</p>
		<p>This paragraph is not.</p>
		<p class="catsandstars">Here are more cats for you.
			<br />Look at them!</p>
		<p>And no more.</p>
	</div>
</body>

</html>