In this project, we’re going to build a practical pomodoro timer using HTML, CSS, and JavaScript. You’ll see how to control time-based behavior with practical start, stop, and reset actions. Along the way, you’ll practice setInterval, click events, DOM selection, 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.
pomodoro-timer/ ├── 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>Pomodoro Timer</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<h1 class="title">Pomodoro Timer</h1>
<p class="timer" id="timer">25:00</p>
<div class="button-wrapper">
<button id="start">Start</button>
<button id="stop">Stop</button>
<button id="reset">Reset</button>
</div>
</div>
<script src="index.js"></script>
</body>
</html>
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