모바일에서 fixed style 지원여부

position

Selector	iOS		Android				Opera			BlackBerry				Nokia				UC	NetFront	Dolphin	One	Tizen	IE		Firefox
	5	6	2	3	4	Chr	Mini	Mob 12	Mob 14	6	7	PB	10	Xpress	MeeGo	Anna	Belle						9	10
position: other values static, relative, and absolute	Yes		Yes				Yes			Yes				Yes				Yes					Yes
	WebKit browsers have a minor bug; see page.
position: fixed basic support Does the browser try to create a fixed layer at all, or is it just an absolutely positioned layer?	Yes		No	Yes			No	Yes		Yes				No		Yes		Yes	No	Yes			No	Yes
	Browsers that don’t support fixed treat it the same as absolute. A Yes here says nothing about implementation quality; only that the browser made an effort.
position of fixed layer Should be coordinates relative to the visual viewport	Incomplete		-	Yes			-	Layout	Yes	Vertical				-		bottom weird		Yes	-	Yes			-	Buggy	Yes
	Safari keeps the layers in position at low zoom levels, but starts to move the fixed layers at a certain point; though always slower than the actual scroll. On the iPhone iOS6 the point is around 400% zoom; on the iPad iOS5 it’s around 100% zoom. I don’t know if this is a difference between iOS 5 and 6 or between iPad and iPhone. Opera Mobile mostly positions the layers relative to the layout viewport, but sometimes jumps to another horizontal position. Never to another vertical position, though. On BlackBerry the vertical position is correct, while the horizontal one is relative to the layout viewport. Symbian correctly positions the first layer (top/left: 50px), but I don’t understand the placement of the second layer. IE10 scrolls the top-placed layer with the page when scrolling up, and the bottom-placed one when scrolling down. When scrolling the other way they more-or-less stay in the correct position.

 

 

출처 http://www.quirksmode.org/css/css2/mobile.html