$aspect-height: 9;
$aspect-width: 16;

@mixin embed-container ($height, $width) {
  padding-bottom: percentage($height/$width);
}

.usa-embed-container {
  iframe,
  object,
  embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
}

.usa-embed-container {
  @include embed-container($aspect-height, $aspect-width);
  position: relative;
  height: 0;
  overflow: hidden;
  max-width: 100%;
}