body {
  padding: 0px;
  text-align: center;
  overflow:hidden;
}
/*Maakt alle afbeeldingen fullscreen op een aantal classes na*/
img:not(.menu, .popup) {
  min-height: 100%;
  min-width: 1079px;
  width: 100%;
  height: auto;
  position: fixed;
  left: 0;
  bottom: 0;
}
.bg{
  z-index: -1;
}
.popup{
  position: fixed;
  width: 8%;
  height: auto;
  right: 23%;
  top: 10%;
  animation: popup 5s infinite;
  animation-timing-function: ease-in-out;
}
@keyframes popup {
  0%{
    transform: translateY(10%);
  }
  50%{
    transform: translateY(30%);
  }
  100%{
    transform: translateY(10%);
  }
}