z-index and div inside div

[programAngel]

Hi if I have div inside div like this:

<div>
<div>
</div>
</div>

Now I want to give the internal div an higher z index so it will be in the front.
I of course change the internal div position.
When I tried to do it, it didn't work.
The father div function as if it has an higher z-index, although it has lower z-index.


Why is that and how can I fix it without talking out the internal div outside the div that wrap it.