![]() ![]() ![]() Note: this is the second beta, and it’s never dead certain that these features actually will arrive in the final version of the OS. Together with the previously revealed properties in Mobile Safari in iOS5, position: fixed and overflow: scroll , this is great news for web apps. But for those who really want to create apps for the mobile browser with that native look-and-feel, this behavior is an obstacle. ![]() I guess iOS has a different scrolling behavior in web pages since it’s actually helpful when there’s a lot of tiny information on screen - a fast moving scroll would have been quite tricky to handle when precision-scrolling through long news articles. Since updating to IOS8, -webkit-overflow-scrolling: touch stops you being able to scroll whatsoever, and the only way I have been able to fix this so far is by removing -webkit-overflow-scrolling: touch which leaves the standard sticky scrolling. It’s maybe the one single thing that makes you think: “Oh right, this is a web app”. I'm working on a web app that uses -webkit-overflow-scrolling:touch in several places to give the overflown divs inertia scrolling. There’s indeed a noticeable difference in momentum between scrolling in native apps and in web pages. Scrollability is the best fake-native scrolling I’ve seen so far, and the one in apps built with Sencha Touch is pretty sharp as well, but I don’t think they can beat this alternative provided by Apple. Previously, I was helped in explaining how z-index works in this. How can this be done Here is my example, correctly displayed at full page. Even Apple has written their own internal web framework (“PastryKit”) to patch up things like scrolling and fixed positioned elements. Please tell me how to apply z-index if the covering element must have position: fixed In this case, position:fixed is applied to navigation, but it is on top of it that I need to display the menu button. Add enough content on the page to scroll When toggle popup menu - add overflow-y: hidden to html and/or body and position: fixed to the popup. No more custom Javascript to fake the native behavior, like iScroll and lately Scrollability from Joe Hewitt. So heres my problem: Add a header bar of 60px height with a popup menu toggler. In iOS 5 Beta 2, you are able to do this on an element with CSS: overflow: scroll Īnd the content inside that element should get native style momentum scroll. But, at least I know now that I'll never forget it again.One of the biggest gripes of web apps in Mobile Safari comes to an end. Looking back at this now, it seemed silly that this approach didn't occur to me immediately. Aside from nav-bars, it's a difficult experience to get right. When possible, you should avoid a user experience (UX) in which fixed elements overlap with scrollable content. If you want the boxes to remain fixed in the corners, things get more complicated especially in a context that may or may not present a scrollbar. And, in the second approach, the four corner boxes are positioned relative to the inner content wrapper, which creates a more "intuitive" bounding box for the content.ĪSIDE: If you try the demo, you'll see that in the first approach the absolutely-positioned corner boxes scroll with the content. Now, when we run this code, we get the following output:Īs you can see, in the first approach, the four corner boxes are positioned relative to the overflow viewport. In the first approach, the relative position is applied to the "overflow" container and, in the second approach, it's being applied to the content wrapper. ![]() This allows theĪbsolutely positioned elements to anchor to the bounding box of the content,Īs you can see, the main difference between the two approach lies in where the "position: relative" style is applied. Onto a content wrapper (contained within the overflow area). To make it smoother on Webkit devices the following does an awesome job. overflow: scroll overflow-x: hidden works just fine. When deactivating it: overflow-y: scroll or. Here, we're moving the position-anchoring off of the overflow container and I found out the issue came from a plugin I used by the name of Skrollr. Yay, content!Yay, content!Yay, content!Yay, content! Positioned elements to anchor to the actual viewport of the container. Here, the overflow container is, itself, acting as the anchor for the Using Position Absolute Inside A Scrolling Overflow Container ![]()
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