Lightbox for Youtube Video

index.html

<button id="playme" onclick="mostrarVideo('video','videoIframe')">Play</button>

<!-- Lightbox video -->
<div id="video" class="lightbox" onclick="esconderVideo('video','videoIframe')">
  <div class="lightbox-container">
    <div class="lightbox-content">
      <button onclick="esconderVideo('video','videoIframe')" class="lightbox-close">Fechar | ✕</button>
	    <div class="video-container">
				<iframe id="videoIframe" width="960" height="540" src="https://www.youtube.com/embed/v0ALfnB7cAY?controls=0" frameborder="0" allowfullscreen autoplay></iframe>
			</div>       
    </div>
  </div>
</div>

lightboxVideo.js

function mostrarVideo(div,video_id){
	var video = document.getElementById(video_id).src;
	
	document.getElementById(video_id).src = video+'&autoplay=1'; // adicionando autoplay na URL
	document.getElementById(div).style.display = 'block';
}

// Escondendo o lightbox e removendo o autoplay
function esconderVideo(div,video_id) {
  var video = document.getElementById(video_id).src;
  var cleaned = video.replace('&autoplay=1',''); // removendo autoplay da URL
	
	document.getElementById(video_id).src = cleaned;
	document.getElementById(div).style.display = 'none';
}

style.css

button#playme{
	padding: 1rem 2rem;
	border: 2px solid blue;
	background: blue;
  font-size: 1rem;
  color: white;
  border-radius: 5px;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: .2rem;
  margin: 0 auto;
  transition: .4s;
}
button#playme:hover{
  background: transparent;
  color: blue;
}
.lightbox{
	background-color: rgba(0, 0, 0, 0.8);
	overflow: scroll;
	position: fixed;
	display: none;
	z-index: 1;
	bottom: 0;
	right: 0;
	left: 0;
	top: 0;
}
.lightbox-container {
	position: relative;
	max-width: 960px;
	margin: 7% auto;
	display: block;
	padding: 0 3%;
	height: auto;
	z-index: 10;
}
.lightbox-content {
	box-shadow: 0 1px 6px rgba(0, 0, 0, 0.7);
}
.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%;
}
.video-container {
	padding-bottom: 56.25%;
	position: relative;
	padding-top: 30px;
	overflow: hidden;
	height: 0;
}
.video-container iframe, .video-container object, .video-container embed {
	position: absolute;
	height: 100%;
	width: 100%;
	left: 0;
	top: 0;
}

@media screen and (max-width: 768px){
	.lightbox-container {
		margin-top: 10%;
	}
}
@media screen and (max-width: 414px) {
	.lightbox-container {
	margin-top: 13%;
	}
}