nav ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
  display: flex;
}

nav li {
  margin-right: 20px; /* ruimte tussen de links */
}

nav a {
  text-decoration: none;
  color: rgb(0, 0, 0);
}

nav a:hover {
  color: rgb(255, 255, 255);
}