html,
body {
  background-color: black;
  height: 100%;
}

iframe {
  border: black solid 1px;
  background-color: black;
}

.player {
  text-align: center;
  margin-top: 3%;
}

.wrapper {
  width: 90%;
  max-width: 960px;
  height: 100%;
  margin: 0 auto;
}

.h_iframe {
  position: relative;
  padding-top: 56%;
}

.h_iframe iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}