body {
    margin: 0;
    font-family: Arial;
    background: #f2f2f2;
}

header {
    background: #1f4e79;
    color: white;
    padding: 20px;
    text-align: center;
}

nav {
    background: #333;
    padding: 15px;
    text-align: center;
}

    nav a {
        color: white;
        text-decoration: none;
        margin: 20px;
    }

        nav a:hover {
            color: yellow;
        }

section {
    width: 80%;
    margin: auto;
    background: white;
    padding: 20px;
    margin-top: 20px;
    border-radius: 10px;
}

img {
    width: 100%;
    max-width: 700px;
    display: block;
    margin: auto;
    border-radius: 10px;
}

video {
    display: block;
    margin: auto;
    margin-top: 20px;
}

footer {
    margin-top: 30px;
    background: #1f4e79;
    color: white;
    text-align: center;
    padding: 15px;
}