http://testpage34567.blogspot.com/
<div class='outer'>
<div class='tcell'>
<div class='wrap'>
<div class='inner'>
<div class='image' onclick='thevid=document.getElementById('thevideo'); thevid.style.display='block'; this.style.display='none'; document.getElementById('iframe').src = document.getElementById('iframe').src.replace('autoplay=0','autoplay=1');'/> </div>
<div id='thevideo' style='display: none;'>
<iframe frameborder='0' id='iframe' src='https://www.youtube.com/embed/bU8fLRxB4nI?rel=0&keyboard=1&disablekb=1&vq=medium&showinfo=0&controls=1&autoplay=0&iv_load_policy=3&fs=0&wmode=transparent'/>
</div>
</div>
</div>
</div>
html,
body {
height: 100%;
background: #000;
color: #fff;
padding: 0;
margin: 0;
}
.outer {
display: table;
height: 100%;
margin: 0 auto;
width: 100%;
}
.tcell {
display: table-cell;
vertical-align: middle;
}
.wrap {
max-width: 400px;
position: relative;
margin: auto;
border: 0px solid #5CB378;
}
.inner {
position: relative;
height: 0;
padding-bottom: 100%;
cursor: pointer;
background-color: black;
}
#thevideo,
.image {
position: absolute;
left: 0px;
top: 0px;
right: 0px;
bottom: 0px;
height: 100%;
width: 100%;
background-color: #000000;
cursor: pointer;
overflow: hidden;
}
#thevideo iframe {
width: 100%;
height: 100%
}
.image {
background: url('http://i.imgur.com/6cKbjZ7.png');
background-size: cover;
border-radius: 50px;
}