body {
    font-family: Arial, sans-serif;
    max-width: 900px;
    margin: auto;
    background-color: #222;
    color: #fff;
}
header {
    text-align: center;
    padding: 20px;
}
.baner {
    width: 100%;
    height: auto;
}
nav ul {
    list-style: none;
    padding: 0;
    text-align: center;
}
nav ul li {
    display: inline;
    margin: 0 15px;
}
nav a {
    color: #fff;
    text-decoration: none;
}
.gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.gallery a {
    margin: 5px;
    text-decoration: none;
    cursor: pointer;
}
.gallery img {
    width: 150px;
    height: auto;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.2s ease-in-out;
}
.gallery img:hover {
    transform: scale(1.05);
}
footer {
    text-align: center;
    margin-top: 20px;
    padding: 10px;
    background-color: #111;
}
@media (max-width: 768px) {
    body {
        max-width: 100%;
        padding: 10px;
    }
    .gallery img {
        width: 100px;
    }
}