body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
}
.header {
    background-color: #2c3e50;
    color: white;
    padding: 15px;
    font-size: 24px;
    font-weight: bold;
}
.nav {
    background-color: #34495e;
    padding: 10px 0;
}
.nav a {
    color: white;
    text-decoration: none;
    padding: 15px 20px;
    display: inline-block;
}
.nav a:hover {
    background-color: #1abc9c;
}
.section {
    padding: 40px 20px;
    text-align: center;
}
.section:nth-child(even) {
    background-color: #f4f4f4;
}
.content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.video-container {
    margin: 20px auto;
    max-width: 800px;
}
iframe {
    width: 100%;
    height: 400px;
    border: none;
}
.image-container img {
    width: 100%;
    max-width: 600px;
    height: auto;
    margin-top: 20px;
}
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 10px;
    margin-top: 20px;
    font-size: 14px;
}