body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
}

.containar {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 600px;
    margin: 20px auto;
}

form {
    display: flex;
    flex-direction: column;
}

input[type="text"] {
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type="submit"] {
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px;
    cursor: pointer;
    font-size: 16px;
}

input[type="submit"]:hover {
    background-color: #218838;
}

#quiz-output {
    margin-top: 20px;
    padding: 10px;
    background-color: #e9ecef;
    border-radius: 4px;
}