.imba-iframe-container {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding-top: 56.25%; 
}

.imba-responsive-iframe {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
}

@media (min-width: 992px) {
    .imba-iframe-center {
    width: 50%;
    margin-right: auto;
    margin-left: auto;
    }
}