I have a problem ( Oops, try again. It looks like your second <li>’s font-size is 16px instead of 12px. help please~

<!DOCTYPE html>
<html>
	<head>
		<title>Loving the font changes</title>
	</head>
	<body>
		<h1 style="font-family: Arial">Big title</h1>
		 <ol>
		 	<li style="font-size= 16px; font-family: Arial">This item is big Arial.</li>
		 	<li style="font-size= 12px; font-family: Verdana">This item is medium Verdana.</li>
		 	<li style="font-size= 10px; font-family: Impact">This item is small Impact.</li>
		 </ol>
	</body>
</html>

after a property (font-size) there should be a colon, not a equal sign