.container-iframe {
   overflow: hidden;
   /* 16:9 aspect ratio */
   padding-top: calc(56.25% + 100px);
   position: relative;
 }
 
 .responsive-iframe {
    border: 0;
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
 }

 #forms-overview {
    height: 100%;
 }

 .full-height
 {
  height: 100%;
 }

 .scroll-y {
  overflow-y: scroll;
}

.next-frame-button {
   margin-top: 1rem;
}

.next-frame-button-right {
   margin-right: 1rem;
}