In this project, we’re going to build a practical button ripple effect using HTML, CSS, and JavaScript. You’ll see how to connect user interactions to visible changes on the page. Along the way, you’ll practice mouse events, DOM selection, JavaScript calculations, so you can understand how the interface and JavaScript logic work together.
Create these three files, copy the code into each one, then open index.html with Live Server.
button-ripple-effect/ ├── index.html ├── style.css └── index.js
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Button Ripple Effect</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<a href="#" class="btn"><span>Button</span></a>
<script src="index.js"></script>
</body>
</html>
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