.tx-km-anaconda2 .embed-container {
  position: relative; 
  padding-bottom: 56.25%; /* ratio 16x9 */
  height: 0; 
  overflow: hidden; 
  width: 100%;
  height: auto;
}

.tx-km-anaconda2 .embed-container iframe {
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 100%; 
  height: 100%; 
}

.tx-km-anaconda2 .embed-container.ratio4x3 {
  padding-bottom: 75%;
}