stylesheet.css

body{
  font-family: Helvetica;
  text-align: center;
  background-color: #D3D3D3
}

#banner {
  background-color: green;
  width: 100%;
  height: 200px;
}

#banner ul li{
  list-style: none;
  display: inline-block;
  text-align: center;
  padding-top: 2%;
  padding-bottom: 2.3%;
  padding-left: 3%;
  padding-right: 3%;
  margin: 2%;
  border-style: solid;
  font-size: 40px;
  background-color: #6A5ACD;
}

a {
  color: white;
  text-decoration: none;
}

a:hover {
  color: black;
}

.button {
  background-color: #6A5ACD;
  border-style: solid;
  padding: 5px;
  border-color: black;
  font-size: 30px;
}

#introductie {
  transform: translateY(80px);
  height: 80px;
  width: 45.5%;
  position: relative;
  right: 0%;
}

#image1 {
  position: relative;
  width: 45.5%;
  left: 29.5%;
  display: inline;
}

#footbanner {
  transform:translateY(80px);
  background-color: green;
  width: 100%;
  height: 40%;
}

div {
  margin: 8px;
}