main {
    background-color: rgb(241, 241, 241);
    max-width: 500px;
    margin: 50px auto;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1, h2 {
    color: #333;
}

button {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 10px 15px;
    margin: 10px;
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
}

button:hover {
    background: #45a049;
}

.hidden {
    display: none;
}

#noteDisplay {
    margin-top: 20px;
}

img {
    max-width: 80%;
    margin-top: 10px;
}