body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 1em 0;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
    display: flex;
    justify-content: center;
    background-color: #333;
}

nav ul li {
    margin: 0 1em;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

main {
    padding: 2em;
}

section {
    margin-bottom: 2em;
}

.gallery {
    display: flex;
    gap: 1em;
}

.gallery img {
    width: 100%;
    max-width: 200px;
    border: 2px solid #ccc;
    border-radius: 5px;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1em 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}