body {
    background: #000;   /* black */
    color: #f00;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
}
}

.container {
    max-width: 600px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #f00;
}

p {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.btn {
    background: #f00;
    color: #000;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
}

.btn:hover {
    background: #c00;
}