/* Style de la page */
body {
    font-family: Arial;
    background: white;
    padding: 10px;
}

/* Menu */
nav {
    text-align: center;
    margin-bottom: 20px;
}

nav ul {
    padding: 0;
}

nav li {
    display: inline;
    margin: 0 10px;
}

nav a {
    color: #3498db;
    text-decoration: none;
}

/* Titres */
h1 {
    text-align: center;
    color: #2c3e50;
}

/* Sections */
section {
    margin-bottom: 20px;
}

/* Titres sections */
h2, h3 {
    color: #3498db;
}

/* Images */
img {
    max-width: 100%;
    margin: 10px auto;
    display: block;
}

/* Vidéos */
video, audio {
    width: 100%;
    max-width: 500px;
    margin: 10px auto;
    display: block;
}

/* Listes */
ul {
    margin-left: 20px;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 20px;
    color: #666;
}
.youtube-video {
    border: none;
}