#Media-Indexer-Update-YoutubeTarget{
   margin:15px;
}
#Media-Indexer-Update-YoutubeWrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
}
#Media-Indexer-Update-YoutubeWrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}