iframe as a div background with visible content inside and clickable - html

Question

I have to set a Vimeo as background for a div which is containing CTA box.
I found some example and made it possible to have the video background fullscreen and responsive as I needed.
But I found that the CTA box inside and the button are not clickable because of the "z-index" used to get the video back in the div.
play with z-index
moving element back and forth
.vimeo-wrapper {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
display:flex;
pointer-events: none;
overflow: hidden;
}
.vimeo-wrapper iframe {
width: 100vw;
height: 56.25vw; /* Given a 16:9 aspect ratio, 9/16*100 = 56.25 */
min-height: 100vh;
min-width: 177.77vh; /* Given a 16:9 aspect ratio, 16/9*100 = 177.77 */
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}.content{
display:flex;
align-items:center;
justify-content:center;
z-index:1;
flex-wrap:wrap;
}.content,h2{
width:100%;
text-align:center;
color:white;
}
.CTA-wrapper{
border:2px solid white;
width:30%;
padding-bottom:2%;
}
div button:hover {
color: yellow;
}
<div class="vimeo-wrapper">
<iframe src="https://player.vimeo.com/video/342964528? background=1&autoplay=1&loop=1&byline=0&title=0" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
<div class="content">
<div class="CTA-wrapper">
<h2>CTA Header</h2>
<button class="btn-success">Click Me</button>
</div>
</div>
</div>
expected: clickable inside elements, fullscreen and responsive background video
result: not the clickable inside element

Answer 1

.CTA-wrapper{
position: relative;
z-index: 9999;
}

Answer 2

I think it will work
css
.vimeo-wrapper {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
display:flex;
pointer-events: none;
overflow: hidden;
}
.content,h2{
width:100%;
text-align:center;
color:white;
}
.CTA-wrapper{
border:2px solid white;
padding-bottom:2%;
}
.vimeo-wrapper-box {
width: 100%;
}
div button:hover {
color: yellow;
}
.iframe_wrapper {
position: relative;
padding-bottom: 56.25%;
}
.vimeo-wrapper iframe {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0px;
width: 100%;
height: 100%;
}
.vimeo-wrapper .content {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
text-align: center;
}
HTML
<div class="vimeo-wrapper">
<div class="vimeo-wrapper-box">
<h1>dfghfh</h1>
<div class="iframe_wrapper">
<iframe src="https://player.vimeo.com/video/342964528?background=1&autoplay=1&loop=1&byline=0&title=0" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
<div class="content">
<div class="CTA-wrapper">
<h2>CTA Header</h2>
<button class="btn-success">Click Me</button>
</div>
</div>
</div>
</div>
</div>