body {
    font-family: arial, sans-serif;
    text-align: center;
    background-color: #000;
    color: #fff;
    padding: 50px;
}

h1 {
    font-size: 36px;
    margin-bottom: 30px;
}

#contador {
    font-size: 80px;
    margin-bottom: 30px;
    color: red;
    font-weight: bold;
}

button {
    padding: 12px 24px;
    font-size: 18px;
    background-color: #ff0000;
    color: white;
    border: none;
    border-radius: 5px;
}

button:hover {
    background-color: #cc0000;
}