$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%;

}