stop.html

<!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>Stop Watch</title>

    <link rel="stylesheet" href="stop.css">
    <link rel="stylesheet" href="./fontawesome-free-5.15.4-web/css/all.css">

</head>

<body>
    <header>
        <nav class="navbar">
            <div class="openmenu"><i class="fa fa-bars"></i></div>
            <ul class="mainmenu">
                <li><a href="index.html" class="nav-link">Home</a></li>
                <li><a href="timer.html" class="nav-link">Timer</a></li>
                <li><a href="stop.html" class="nav-link">Stop Watch</a></li>
                <div class="closemenu"><i class="fa fa-times"></i></div>
            </ul>
        </nav>
    </header>
    <section class="overlay">
        <div class="stopwatch">
            <h1>Stop Watch</h1>
            <div class="circle">
                <span class="time" id="display">00:00:00</span>
            </div>
            <div class="control">
                <button class="btn play">
                    <p id="playButton">Start</p>
                    <p id="pauseButton">Stop</p>       
                </button>
                <button class="btn reset">
                    <p id="resetButton">Reset</p>
                </button>
            </div>
        </div>
        <div class="clock">
            <img src="gallery/clock3.png" alt="Clock">
        </div>
    </section>
    <script src="stop.js"></script>

    <div class="word">
        <p>Act Fast!</p>
    </div>

</body>

</html>