Half-fixed

[Gmanvn]

Do you know how to make a half-fixed element?

Half-fixed term:
The element A within another one B.
By default A has position: fixed.
But when you scroll browser over the B element, A become static (maybe at the bottom of B).

It seems so crazy, just be my idea. Can you make it real?
Thanks

[jscheuer1]

The browser is always over element B.

[Gmanvn]

I mean A is always inside B.

[jscheuer1]

I mean A is always inside B.

Right.

[Gmanvn]

yes, but if it is fixed, when you scroll down, A is outside with B.
Do you understand me?

[djr33]

So there's a floating element, within an outer element that acts as a boundary for its motion?

[Gmanvn]

yes. But how

Sorry, I can't post reply for few days