.video-wrap {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.video-container {
  position: relative;
  overflow: hidden;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

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