body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f7f7f7;
}

.test-container {
    text-align: center;
}

button.option {
    background-color: #f0f0f0;
    padding: 10px 20px;
    margin: 10px;
    border: 2px solid #ccc;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: transform 0.3s;
}

button.option:hover {
    background-color: #e0e0e0;
    transform: scale(1.1);
}

#result-message {
    margin-top: 20px;
    padding: 10px;
    border-radius: 5px;
    font-size: 18px;
    font-weight: bold;
    display: none;
}

.correct {
    background-color: #28a745;
    color: white;
}

.incorrect {
    background-color: #dc3545;
    color: white;
}