CSS Z-index Layering
Preview
Code
<style>
.box1{
position:absolute;
left:20px;
top:20px;
background:#ef4444;
padding:20px;
z-index:1;
}
.box2{
position:absolute;
left:40px;
top:40px;
background:#2563eb;
padding:20px;
z-index:2;
color:white;
}
</style>
<div class="box1">Layer 1</div>
<div class="box2">Layer 2</div>