Consider the following example:
<div id="div-B w-100 h-100" style="z-index: 5; position: absolute; top: 0; left: 0">
//code here
</div>
<div id="div-A" style="z-index: 1;">
<button style="z-index:500000">Try click</button>
</div>
By the way the z-index works according to the documentation the child element of div-A (button) would have a smaller z-index than div-B because its parent has a smaller z-index.
My question is, is there any way to make the child element (button) be greater than div-A?