CSS3LearningNotes.html

<!DOCTYPE html>
<html lang="zh" dir="ltr">
	<head>
		<meta charset="utf-8">
		<title>CSS3设计学习笔记</title>
		<link rel="stylesheet" href="./css/CSS3LearningNotes.css">
	</head>
	<body>
		<div id="box" class="">
			<span>前端学院</span>
			<button id="clickChange" class="btn">切换样式</button>
		</div>

		<!-- <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script> -->
		<script src="./js/CSS3LearningNotes.js" charset="utf-8"></script>
	</body>
</html>