.video-container {
  position: relative;
  width: 100%;
  max-width: 500px;
  height: 300px;
  margin: 0 auto;
  overflow: hidden;
  margin-bottom: 20px;
}
.video-container iframe,
.video-container object,
.video-container embed {
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  border: none;
}

@media (max-width: 480px) {
  .video-container {
    max-width: 500px;
    height: 200px;
  }
}