Z-Indexed container isn't clickable - html

Question

I've implemented a bootstrap snippet for video header on my website. It consists of 3 layers:
1. Video (z-index: 0)
2. Overlay of the video (z-index: 1)
3. Text and button (z-index:3)
The arrangement of layers work perfectly, with video being in the background, overlay on top of it, and then text and button on all of that. However, the text and button on front layer isn't clickable, so the button is not in function.
header {
position: relative;
background-color: transparent;
height: 75vh;
min-height: 25rem;
width: 100%;
overflow: hidden;
}
header video {
position: absolute;
z-index: 0;
top: 50%;
left: 50%;
min-width: 100%;
min-height: 100%;
width: auto;
height: auto;
-ms-transform: translateX(-50%) translateY(-50%);
-moz-transform: translateX(-50%) translateY(-50%);
-webkit-transform: translateX(-50%) translateY(-50%);
transform: translateX(-50%) translateY(-50%);
}
header .container {
position: relative;
z-index: 2;
}
header .overlay {
position: absolute;
top: 0;
left: 0;
height: 100%;
width: 100%;
background-color: #37250F;
opacity: 0.5;
z-index: 1;
}
#media (pointer: coarse) and (hover: none) {
header {
background: url('https://source.unsplash.com/XT5OInaElMw/1600x900') black no-repeat center center scroll;
}
header video {
display: none;
}
}
<header>
<div class="overlay"></div>
<video playsinline="playsinline" autoplay="autoplay" muted="muted" loop="loop">
<source src="https://storage.googleapis.com/coverr-main/mp4/Mt_Baker.mp4" type="video/mp4">
</video>
<div class="container h-100">
<div class="d-flex h-100 text-center align-items-center">
<div class="w-100 text-white">
<h1 style="font-size:250%; text-align: center; padding-top:170px;">Preplati se na dostavu svježeg voća</h1>
<form action="http://www.opgnjavro.hr/dostava-voca/">
<button class="snip1562">Saznaj više</button>
</form>
</div>
</div>
</div>
</header>

Answer 1

It's been fixed. I was mixing Elementor with WordPress theme and the navigation of WP theme blocked the Elementor HTML code.
Thanks everyone!