.video-gruppo-imac .video-wrapper {
    display: inline-block; /*allows the container to horizontally center*/
    margin-bottom: -4px; /*removes bottom spacing cause by inline-block*/
    position: relative;
    width: 100%;
}

.video-gruppo-imac .video-wrapper:before {
    content: "";
    display: block;
    padding-top: 56.25%; /* 16:9 aspect ratio */
}

.video-gruppo-imac .video-wrapper > iframe {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-radius: 0px !important;
}


 .video-gruppo-imac .video-wrapper .onb-embed-responsive-item {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  height: 100%;
  width: 100%;
  border-radius: 6px !important;
}


.play-button-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: auto;
  pointer-events: none;
}
.play-button-wrapper #circle-play-b {
  cursor: pointer;
  pointer-events: auto;
}
.play-button-wrapper #circle-play-b svg {
  width: 70px;
  height: 70px;
  /*fill: #fff;*/
  /*stroke: #fff;*/
  cursor: pointer;
  /*background-color: rgba(0, 0, 0, 0.2);*/
  border-radius: 50%;
  opacity: 0.9;
}