Will try to explain my question with an example:
Home page has a large flowplayer (video) after the header. And the login tab uses bootstrap models which appears on top of the video player onclick with a normal login form.
Everything works fine on all browsers and devices except iphone or ipad.
By doing some google search I have come to a conclusion that apple does not support any html overlapping the video content.
Could not find any discussions on this topic on this site too, so posting this question here hoping that someone can provide an alternative or a way to get this working (overlapping models on video player).