```css
body {

    font-family: Arial, sans-serif;

    background: #f5f5f5;

    margin: 0;

    padding: 0;

}


.container {

    width: 600px;

    max-width: 90%;

    margin: 70px auto;

    background: white;

    padding: 30px;

    border-radius: 12px;

    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);

}


h1 {

    text-align: center;

    margin-bottom: 5px;

}


p {

    text-align: center;

    color: #666;

    margin-bottom: 30px;

}


label {

    display: block;

    font-weight: bold;

    margin-bottom: 8px;

}


textarea {

    width: 100%;

    height: 120px;

    box-sizing: border-box;

    padding: 12px;

    font-size: 16px;

    border: 1px solid #ccc;

    border-radius: 8px;

    resize: vertical;

}


textarea:focus {

    outline: none;

    border-color: #555;

}


button {

    width: 100%;

    margin-top: 15px;

    padding: 12px;

    border: none;

    border-radius: 8px;

    background: #333;

    color: white;

    font-size: 16px;

    cursor: pointer;

}


button:hover {

    background: #555;

}


h2 {

    margin-top: 30px;

}


#answer {

    background: #f5f5f5;

    padding: 15px;

    border-radius: 8px;

    min-height: 80px;

    line-height: 1.6;

}
```