CSS: Flex video de foundation

flex-video.css

.flex-video {
  position: relative;
  padding-top: 1.5625rem;
  padding-bottom: 67.5%;
  height: 0;
  margin-bottom: 1rem;
  overflow: hidden; }
  .flex-video.widescreen {
    padding-bottom: 56.55%; }
  .flex-video.vimeo {
    padding-top: 0; }
  .flex-video iframe,
  .flex-video object,
  .flex-video embed,
  .flex-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%; }