body {
  position: relative;
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  color: white;
  background-color: #003366;
}

#header {
  display: flex;
  justify-content: center;
  position: sticky;
  top: 0;
  background-color: #003366;
  padding: 10px;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
}

.logo img {
  height: 150px; /* Augmenter la taille du logo */
}

.download-button {
  display: inline-block;
  margin: 10px 0;
  padding: 10px 20px;
  font-size: 1.2em;
  color: #003366;
  background-color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.download-button:hover {
  background-color: #004d99;
  color: white;
}

section {
  padding: 60px;
  text-align: center;
}

section img {
  max-width: 100%;
  height: auto;
}

footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: #003366;
  color: white;
  text-align: center;
  padding: 10px 0;
}