Question

I have transparent div-block in html. There is another child blocks in it. Is it possible to make that child divs untransparent?

Answer 1

I don’t believe so, but you can do something like this:

<div style="position: relative">
    <div style="position: absolute; top: 0; left: 0; opacity: 0.5; z-index: 2;">
    </div>
    <div style="position: absolute; top: 0; left: 0; z-index: 3;">
        <p>I'm fully opaque</p>
    </div>
</div>

This technique basically overlays one div on top of the other. It’s useful for animating background images and for other situations but might not be applicable to your use case – you’ll have to elaborate.