body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom, #002400, #004d00);
    color: white;
    text-align: center;
}
header {
    background-color: #003300;
    padding: 20px;
}
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}
nav ul li {
    display: inline;
}
nav ul li a {
    text-decoration: none;
    color: white;
    background: green;
    padding: 10px 15px;
    border-radius: 5px;
}
.content {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}
.image-container {
    display: flex;
    gap: 20px;
}
.image-container img {
    width: 400px;
    height: auto;
    border-radius: 10px;
}