<style>
.responsive-iframe-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 120%; /* controls height on mobile */
  height: 0;
}

.responsive-iframe-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
</style>
