body {
    font-family: Arial, sans-serif;
    background-color: #f0f8ff;
    text-align: center;
}
header {
    background-color: #003366;
    color: #fff;
    padding: 20px;
}
.logo {
    width: 100px;
}
.gallery img {
    width: 200px;
    border-radius: 8px;
}