body{
    width: auto;
    height: auto;
    overflow: hidden;
}
.sidebar {
  width: 20%;
  height: 100%;
    max-height:1080px;
  display: block;
  background-color: #fff;
  padding: 0;
  margin: 0;
 float:left;
}
.scrollicons{
    width: 100%;
    height: 67%;
    overflow-y: scroll;
}
.scrollicons img{
    width: 50%;
    float: left;

}
.frame {
  width: 80%;
  height: 100%;
  float: left;
border: 0 !important;
}
.iframe{
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.container{
    width: 1920px;
    height: 1080px;
}
.vooruit{
    display: block;
    width: 48%;
    float: left;
    background-color: #aec805;
    text-align: center;
    padding: 1%;
}
.topbar{
    width: 100%;
    height: 2%;
}
.vooruit, .terug{
    display: block;
    width: 48%;
    float: left;
    background-color: #aec805;
    text-align: center;
    padding: 1%;
       color: #fff;
    font-weight: bold;
    font-size: 150%;
    height: 100%;
}

.terug:hover, .vooruit:hover{
    text-decoration: none;
    color: #fff;
    background-color: #91A605;
}
.terug:visited, .vooruit:visited, .terug:link, .vooruit:link, .terug:active, .vooruit:active {
    text-decoration: none;
    color: #fff;
}