.hm-videomodal .modal-dialog {
  margin-left: auto;
  margin-right: auto;
  max-width: 560px;
}
.hm-videomodal .modal-body {
  max-width: 560px;
  padding-top: 56.25%;
  overflow: hidden;
  height: 0;
  position: relative;
}
.hm-videomodal iframe {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}