* {
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
}

/* Style the header */
header {
  background-color: #666;
  padding: 30px;
  text-align: center;
  font-size: 20px;
  color: black;
  background-image: url("6016367.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Create two columns/boxes that floats next to each other */
nav {
  float: left;
  height: 100vh;
  width: 20%;
  background: #ccc;
  padding: 20px;
}

/* Style the list inside the menu */
nav ul {
  list-style-type: none;
  padding: 0;
}

article {
  float: left;
  padding: 20px;
  width: 80%;
  max-height: 100vh; /* Maximaal de hoogte van het scherm */
  overflow: auto;   /* Voeg scrollen toe als de inhoud te groot is */
  background: white;
}

/* Clear floats after the columns */
section::after {
  content: "";
  display: table;
  clear: both;
}

/* Style the footer */
footer {
  background-color: #777;
  padding: 10px;
  text-align: center;
  color: white;
}

img {
  align: center;
	width: 100px;
	}

/* Responsive layout - makes the two columns/boxes stack on top of each other instead of next to each other, on small screens */
@media (max-width: 600px) {
  nav, article {
    width: 100%;
    height: auto;
  }
}