.navbar {
  text-align: center; 
}

.navbar {
  overflow: hidden;  
  width: 100%;
  position: absolute;
  top: 10px; 
}

.navbar a {
  font-size: 20px;
  color: white;
  z-index: 1;
  opacity: 1;
  transition: .5s;
}

.navbar a:hover {
text-decoration: underline;
cursor: grab;
}

.Wat ,.Onderdelen ,.Toepassingen ,.Contact {
text-decoration: none;
}

.Home ,.Wat ,.Onderdelen ,.Toepassingen ,.Contact {
  position: fixed;


}

.Home {
 left: 16.6%;
}
 
.Wat {
 left: 33.2%;
}

.Onderdelen {
 left: 49.8%;
}

.Toepassingen {
 left: 66.4%;
}

.Contact {
 left: 83%;
}

.background {                                   
position: fixed;
top: 0px;
display: block;
margin-left: auto;
margin-right: auto;
width: 100%;
height: 100%;
min-width: 100%;
z-index: -2;
border-radius: 25px;
object-fit: cover;
}

.blackbox {
position: fixed;
background-color: black;    
height: 100%;
width: 100%;
z-index: -2;
opacity: .3;
border-radius: 25px;
top: 0px;
}

.logo {
  position: fixed;
  z-index: 1;
  width: 40px;
  height: auto;
  left: 25px;
  top: 25px;
  border-radius: 25px;
  transition: 2s;
}

.logo:hover {
  transform: rotate(90deg);
  width: 60px;
  height: auto;
  top: -40px;
  left: 80px;
}