body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #fff;
    color: #333;
    text-align: center;
}
header {
    background-color: #000;
    color: #fff;
    padding: 2rem 1rem;
}
.gallery {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin: 2rem;
}
.gallery img {
    width: 300px;
    height: auto;
    margin: 1rem;
    border: 3px solid #ddd;
    border-radius: 10px;
}
footer {
    background-color: #f2f2f2;
    padding: 1rem;
    font-size: 0.9rem;
}