.yt-box-modal {
  position:fixed;
  top:0;
  left:0;
  right:0;
  bottom:0;
  z-index:99999;
  background-color: rgba(0, 0, 0, 0.8);
}

.yt-box-modal-wrapper {
  margin-top: 28vh;
  width: 95%;
  max-width: 850px;
  margin-left:auto;
  margin-right:auto;
  position:relative;
}

.yt-box-modal-exit {
  position:absolute;
  top:-30px;
  right:0;
  color:#FFF;
  font-size:25px;
  width:17px;
  height:17px;
  cursor:pointer;
}

.yt-box-video {
  width: 100%;
  height: 480px;
}
@media (max-width:767px) {
  .yt-box-video {
    width:100%;
    height:350px;
  }
}