body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
}

header {
    background-color: #343a40;
    color: white;
    text-align: center;
    padding: 10px 0;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-gap: 20px;
    padding: 20px;
}

.gallery img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.gallery img:hover {
    transform: scale(1.05);
}

/* No additional CSS needed as it's included in the HTML file */