Currently, I'm in the process of developing a website using Bootstrap 4. One particular section on the page features an image of someone holding an iPad. The screen of the iPad is transparent, and my intention is to either insert an image or a video within that space.
Although I'm not well-versed in CSS, I am wondering if it's possible to position the image behind the tablet by utilizing z-index?
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<div class="row">
<div class="col-md-12">
<img id="wallpaper" src="https://images.pexels.com/photos/531880/pexels-photo-531880.jpeg?auto=compress&cs=tinysrgb&h=350" width="35%" class="mx-auto d-block">
<img id="tablet" src="https://avatanplus.com/files/resources/original/58fb507e4582f15b95b26d4d.png" width="60%" class="mx-auto d-block">
</div>
</div>