timer-pedro-fernando-locatelli/index.html at main · pedroharaujooo/timer-pedro-fernando-locatelli · GitHub

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<!DOCTYPE html>
<html lang="pt-br">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Controle de tempo</title>
    <style>
        * {
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            padding: 0;
        }

        body {
            background: linear-gradient(135deg, #1d2b64, #f8cdda);
            height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: #fff;
            padding: 20px;
        }

        h2 {
            font-size: 4rem;
            margin-bottom: 30px;
            text-shadow: 2px 2px 4px #00000066;
        }

        #timer {
            font-size: 3rem;
            margin-top: 20px;
            text-shadow: 2px 2px 4px #00000066;
        }

        button {
            padding: 12px 24px;
            margin-top: 30px;
            font-size: 1.1rem;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            background-color: #ffffff33;
            color: white;
            backdrop-filter: blur(4px);
            transition: background-color 0.3s;
        }

        button:hover {
            background-color: #ffffff55;
        }

        hr {
            width: 80%;
            margin: 40px 0;
            border: 1px solid #ffffff44;
        }
    </style>
</head>
<body>
    <h2 id="relogio"></h2>

    <hr>

    <div id="timer">0:0:0</div>
    <button onclick="iniciar()">Iniciar Timer</button>

    <script>
        function atualizarRelogio(){
            const agora = new Date();
            const horas = agora.getHours().toString().padStart(2, '0');
            const minut = agora.getMinutes().toString().padStart(2, '0');
            const segun = agora.getSeconds().toString().padStart(2, '0');
            document.getElementById("relogio").innerText = `${horas}:${minut}:${segun}`;
        }
        setInterval(atualizarRelogio, 1000);
        atualizarRelogio();
    </script>

    <script>
        let segundos = 0;
        let intervalo;

        function formatar(segundos){
            const h = String(Math.floor(segundos / 3600)).padStart(2, '0');
            const m = String(Math.floor((segundos % 3600) / 60)).padStart(2, '0');
            const s = String(segundos % 60).padStart(2, '0');
            return `${h}:${m}:${s}`;
        }

        function atualizarTimer(){
            document.getElementById("timer").innerText = formatar(segundos);
        }

        function iniciar(){
            if(!intervalo){
                intervalo = setInterval(() => {
                    segundos++;
                    atualizarTimer();
                }, 1000);
            }
        }
    </script>
</body>
</html>