.display-table {display:table!important;}
.display-table-cell {display:table-cell!important;vertical-align:middle; float:none;}
.video-iframe-16-9 .media{
  position: relative;
  padding-bottom: 56.25%; /* 16:9, for an aspect ratio of 1:1 change to this value to 100% */   
}

.video-iframe-16-9 iframe{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}