HTML/CSS: YouTube iframe as background with controls usable and button overlay - html

Question

I just fooled around with HTML/CSS to build me a page with a youtube-video with a button on top of it.
* { box-sizing: border-box; }
.video-background {
background: #000;
position: fixed;
top: 0; right: 0; bottom: 0; left: 0;
z-index: -99;
}
.video-background iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
html, body {
height: 100%;
margin: 0;
}
body {
display: flex;
justify-content: center;
align-items: center;
}
.btn-wrapper {
width: 290px;
height: 110px;
position: relative;
margin: 40px auto 0;
}
.btn-wrapper:hover .btn-inner {
top: -4px;
transform: scale(1, 1);
cursor: pointer;
}
.btn-wrapper__container {
border-bottom: 2px solid #15b5e2;
position: absolute;
width: 100%;
height: 80px;
}
.btn-wrapper__container:before, .btn-wrapper__container:after {
border-bottom: 2px solid #15b5e2;
width: 96%;
left: 2%;
bottom: -8px;
content: "";
position: absolute;
}
.btn-wrapper__container:after {
width: 92%;
left: 4%;
bottom: -14px;
}
.btn-wrapper__container .btn-inner {
width: 104.2%;
height: 100%;
position: absolute;
top: 20px;
left: -2.1%;
border: 2px solid #15b5e2;
box-sizing: border-box;
display: flex;
justify-content: center;
align-items: center;
font-family: 'Source Code Pro', monospace;
letter-spacing: 1px;
text-transform: uppercase;
font-size: 18px;
background: #10131c;
transform: scale(0.96, 0.96);
transition: all 0.3s;
z-index: 4;
}
.btn-wrapper__container .btn-inner__text {
text-decoration: none;
color: #15b5e2;
}
<div class="video-background">
<iframe src="https://www.youtube.com/embed/TMzouTzim0o?controls=1&showinfo=0&rel=0&autoplay=1&loop=1&playlist=W0LHTWG-UmQ" frameborder="0" allowfullscreen></iframe>
</div>
<div class="btn-wrapper">
<div class="btn-wrapper__container">
<div class="btn-inner">
<a class="btn-inner__text" href="#">Hover Me</a>
</div>
</div>
</div>
While without the button added, the video is shown in background, responsive and fullscreen, with control-elements enabled. If i add the hover-button, I am no longer able to control the video in background (360 video).
How can I enable the controls of the video and still have the button usable?
I am unfortunately not a coding expert, I've puzzled these pieces together of code I found in tutorials.

Answer 1

Remove css property z-index: -99 from class .video-background {...}, that will fix the issue.
* {
box-sizing: border-box;
}
.video-background {
background: #000;
position: fixed;
top: 0; right: 0; bottom: 0; left: 0;
/* z-index: -99; */ /* Remove this line */
}
.video-background iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
html,
body {
height: 100%;
margin: 0;
}
body {
display: flex;
justify-content: center;
align-items: center;
}
.btn-wrapper {
width: 290px;
height: 110px;
position: relative;
margin: 40px auto 0;
}
.btn-wrapper:hover .btn-inner {
top: -4px;
transform: scale(1, 1);
cursor: pointer;
}
.btn-wrapper__container {
border-bottom: 2px solid #15b5e2;
position: absolute;
width: 100%;
height: 80px;
}
.btn-wrapper__container:before,
.btn-wrapper__container:after {
border-bottom: 2px solid #15b5e2;
width: 96%;
left: 2%;
bottom: -8px;
content: "";
position: absolute;
}
.btn-wrapper__container:after {
width: 92%;
left: 4%;
bottom: -14px;
}
.btn-wrapper__container .btn-inner {
width: 104.2%;
height: 100%;
position: absolute;
top: 20px;
left: -2.1%;
border: 2px solid #15b5e2;
box-sizing: border-box;
display: flex;
justify-content: center;
align-items: center;
font-family: 'Source Code Pro', monospace;
letter-spacing: 1px;
text-transform: uppercase;
font-size: 18px;
background: #10131c;
transform: scale(0.96, 0.96);
transition: all 0.3s;
z-index: 4;
}
.btn-wrapper__container .btn-inner__text {
text-decoration: none;
color: #15b5e2;
}
<div class="video-background">
<iframe src="https://www.youtube.com/embed/TMzouTzim0o?controls=1&showinfo=0&rel=0&autoplay=1&loop=1&playlist=W0LHTWG-UmQ"
frameborder="0" allowfullscreen></iframe>
</div>
<div class="btn-wrapper">
<div class="btn-wrapper__container">
<div class="btn-inner">
<a class="btn-inner__text" href="#">Hover Me</a>
</div>
</div>
</div>