body{
 	padding: 25px;
	background-image: url('Vik Goossens VoorkantZV.jpg');
	background-repeat: no-repeat;
  	background-size: cover;
	text-align: center
}

ul {
  	list-style-type: none;
}

.flex-container {
  	display: flex;
  	flex-direction: column;
	color: white;
}

.flex-container > div {
  text-align: center;
}

.responsive {
  width: 100%;
  max-width: 400px;
  height: auto;
}