.yt-js-lightbox {
 background: rgba(0, 0, 0, 0.8); 
  overflow: scroll;
  position: fixed;
  display: none;
  z-index: 3;
  bottom: 0;
  right: 0;
  left: 0;
  top: 0;
}
.yt-js-lightbox-container {
    position: relative;
    max-width: 960px;
    margin: 7% auto;
    display: block;    
    padding: 0 3%;
    height: auto;
    z-index: 10;
}
@media screen and (max-width: 768px) { .yt-js-lightbox-container { margin-top: 10%; }}
@media screen and (max-width: 414px) { .yt-js-lightbox-container { margin-top: 13%; }}
.yt-js-lightbox-content {
    box-shadow: 0 1px 6px fade(black, 70%);
}
.yt-js-lightbox-close {
    text-transform: uppercase;    
    background: transparent;
    position: absolute; 
    font-weight: 300;      
    font-size: 12px;
    display: block;
    border: none;
    color: white;
    top: -22px;
    right: 3%;
  }
.yt-js-video-container {  
    padding-bottom: 56.25%;
    position: relative;  
    padding-top: 30px; 
    overflow: hidden;
    height: 0; 
}

.yt-js-video-container iframe,
.yt-js-video-container object,
.yt-js-video-container embed {
    position: absolute;
    height: 100%;  
    width: 100%;  
    left: 0;  
    top: 0;
}