Professional Stopwatch

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Professional Stopwatch</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
        .stopwatch {
            background: #fff;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            padding: 30px;
            text-align: center;
            max-width: 400px;
            width: 100%;
        }
        .stopwatch .time {
            font-size: 3rem;
            margin-bottom: 20px;
            color: #333;
            font-weight: bold;
        }
        .stopwatch .buttons {
            display: flex;
            justify-content: space-between;
        }
        .stopwatch button {
            background: #007bff;
            border: none;
            border-radius: 50px;
            color: #fff;
            font-size: 1rem;
            padding: 10px 20px;
            cursor: pointer;
            transition: background 0.3s;
            box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
        }
        .stopwatch button:hover {
            background: #0056b3;
        }
        .stopwatch button:active {
            background: #004080;
            box-shadow: 0 2px 10px rgba(0, 123, 255, 0.2);
        }
        .stopwatch button:focus {
            outline: none;
        }
        .stopwatch .start-btn {
            animation: pulse 2s infinite;
        }
        .stopwatch .reset-btn {
            background: #dc3545;
        }
        .stopwatch .reset-btn:hover {
            background: #b52a37;
        }
        .stopwatch .reset-btn:active {
            background: #891f2a;
        }
        .stopwatch .reset-btn:focus {
            outline: none;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 5px rgba(0, 123, 255, 0.7); }
            50% { box-shadow: 0 0 20px rgba(0, 123, 255, 0.7); }
            100% { box-shadow: 0 0 5px rgba(0, 123, 255, 0.7); }
        }
        .stopwatch .icons {
            display: flex;
            justify-content: space-around;
            margin-top: 20px;
        }
        .stopwatch .icon {
            font-size: 2rem;
        }
        .stopwatch .icon.emoji {
            font-size: 3rem;
        }
    </style>
</head>
<body>
    <div class="stopwatch">
        <div class="time">00:00:00</div>
        <div class="buttons">
            <button class="start-btn">Start ⏱️</button>
            <button class="reset-btn">Reset 🔄</button>
        </div>
        <div class="icons">
            <div class="icon emoji">⏳</div>
            <div class="icon emoji">⌚</div>
            <div class="icon emoji">⏲️</div>
        </div>
    </div>
    <script>
        let timeDisplay = document.querySelector('.time');
        let startBtn = document.querySelector('.start-btn');
        let resetBtn = document.querySelector('.reset-btn');
        let intervalId;
        let elapsedTime = 0;
        let running = false;
        startBtn.addEventListener('click', function() {
            if (!running) {
                intervalId = setInterval(() => {
                    elapsedTime += 10;
                    let date = new Date(elapsedTime);
                    let minutes = String(date.getMinutes()).padStart(2, '0');
                    let seconds = String(date.getSeconds()).padStart(2, '0');
                    let milliseconds = String(date.getMilliseconds()).padStart(3, '0').slice(0, -1);
                    timeDisplay.textContent = `${minutes}:${seconds}:${milliseconds}`;
                }, 10);
                running = true;
                startBtn.textContent = 'Pause ⏸️';
            } else {
                clearInterval(intervalId);
                running = false;
                startBtn.textContent = 'Start ⏱️';
            }
        });
        resetBtn.addEventListener('click', function() {
            clearInterval(intervalId);
            elapsedTime = 0;
            timeDisplay.textContent = '00:00:00';
            running = false;
            startBtn.textContent = 'Start ⏱️';
        });
    </script>
</body>
</html>

Professional Stopwatch - MeggiTools