I have been struggling with fixed positioning in iPad for a while. I know iScroll and it does not always seem to work even in their demo. I am hoping that someone may have the solution. A lot of mobile browsers deliberately do not support position:fixed; on the grounds that fixed elements could get in the way on a small screen. The Quirksmode. I tested iOS 5 myself in an Apple store today and can confirm that it does work with position fixed.
There are issues with zooming in and panning around a fixed element though. Imagine you have a sheet of paper the webpage under a magnifying glass the viewportif you move the magnifying glass and your eye, you see a different part of the page.
This is how iOS works.Fixed: Screen Recording Failed to Save Cocoa Error on iPhone
Now there is a sheet of clear plastic with a word on it, this sheet of plastic stays stationary no matter what the position:fixed elements. So when you move the magnifying glass the fixed element appears to move. Alternatively, instead of moving the magnifying glass, you move the paper the webpagekeeping the sheet of plastic and magnifying glass still.
iOS fix for position fixed elements on input focus (virtual keyboard visible)
In this case the word on the sheet of plastic will appear to stay fixed, and the rest of the content will appear to move because it actually is This is a traditional desktop browser. So in iOS the viewport moves, in a traditional browser the webpage moves. In both cases the fixed elements stay still in reality; although on iOS the fixed elements appear to move.
The way to get around this, is to follow the last few paragraphs in this article. But you need to make sure your meta tags are fully set. Also if you're planning on having the same page work on android pre 4.The word supported needs to be taken with a pinch of salt, because there's all kinds of issues which I intend to show you in the following post. Note that I have filed bugs for a number of these during the beta of iOS 5 - but god knows how the Radar Apple thing works, so I don't know the issue numbers.
I've published 38 videos for new developers, designers, UX, UI, product owners and anyone who needs to conquer the command line today. I might have argued that fixed positioned doesn't matter or isn't really required in a good app. However, there's an increasing number of iOS apps I've noticed that are actually just a collection of WebViews mini-MobileSafaris with fixed position toolbars as seen in Apple's own AppStore app, the native Facebook app and Instagram below:.
AppStore via devongovettFacebook via 9eggs. I've created a number of example pages that you can view for yourself, which are used in the following videos. If you add position:fixed in any normal way as you might on a "desktop" site, you'll see some degree of juddering as the page scrolls. Note that this is the simulator running, but I've also captured the real iPhone using Reflection showing the same behaviour. The page used was: jsbin.
The sharp eyed viewer might have spotted some values changing in the video. I'm monitoring the window. You'll notice that the values don't change until the scroll has finished. This is a problem if you want to monitor the page position to simulate effects like the bumping and shunting of category headings like you might see in the address book app. If the page is zoomed at all, which you can get in iOS when the user rotates from portrait to landscape, as the user scrolls in any scale beyond 1 i.
If there's a focusable element inside the position fixed element, i. This will only happen if the user has scrolled any amount but if you're using position:fixed you're expecting exactly that kind of usage.
With iOS 5, MobileSafari also came with -webkit-overflow-scrolling: touch. This is actually intended for inline blocks of content to the page I mean inline with respect to the document. However, that alone does not fix the juddering.
The trick would seem to be: make sure your fixed position element is not on a "moving canvas". This example has the fixed element over a scrolling element, but not inside of it.
So when I tried to apply this technique to the body element, the juddering was still visible, as the fixed element was inside the scrolling element. I also captured this on the real device too. Again, those keen eyes might have spotted values are moving again. Note that as I've changed the CSS the body is no longer scrolling, so the 0 values on the left and right are window. Since the window isn't scrolling, the content block is in an overflow, the values won't change.
If the page is zoomed at all, which you can get in iOS when the user rotates from portrait to landscape, as the user scrolls in any scale beyond 1 i.
W3.CSS iOS Colors
This example has the fixed element over a scrolling element, but not inside of it. So when I tried to apply this technique to the body element, the juddering was still visible, as the fixed element was inside the scrolling element. I also captured this on the real device too. Again, those keen eyes might have spotted values are moving again.
Let's be friends:. DZone 's Guide to. Free Resource. Like 0. Join the DZone community and get the full member experience. Join For Free. With the release of iOS 5, fixed positioned layout is said to be supported in MobileSafari. Like This Article? Remote Agile: Practices and Tools [Video].If you ever had to fix element on scroll, you probably had an issue on iOS Safari and other mobile devices. Element will usually flicker, and disappear until scrolling has stopped completely.
Just force GPU acceleration by adding transform: translate3d 0,0,0 ; to your element. This may be helpful to some others.
Wow, if you had a donate button on this article I would pay you. You fixed my issue of hours of research! Thanks for the article I tried it directly on my element fixed, but the fixed position somehow got canceled?
Hello Jonathan, probably something else in your code removed it. Wow, fast reply, thank you! OK it was because I put them in one single class, but still I got these flickering….
Hey, I need to understand one thing, i must to apply translate3d at every element that it will pass scroll through the fixed element? Not sure what you are asking, but my guess is - should you apply translate3d to children of the element with position: fixed?
Issues With Position Fixed & Scrolling on iOS
It depends of the usecase, like Matt suggested, if children elements are flickering you should apply translate3d on them. Hi Stanko! I have tried with your solution. But in our side is not working in iPhone. Please let me know what i wrong in below code. It was unreadable, next time please try making example on codepen or jsbin. I had an element whose styling would change from relative to fixed but would sometimes fade out and no longer work after a few events on MacBook Air Safari OS Adding this CSS styling to the element resolved the issue.
“The Notch” and CSS
Can you think of any reason why this would happen? Unfortunately, without a example it is hard to see what is going on in your case. Try applying transform: translate3d 0, 0, 0 and backface-visibility: hidden hacks, but it is hard to tell if that is going to help. Hi, Why is this not working for me? Matt, when I have a input at the bottom of the page and on its focus, I get extra white space while scrolling.
How to get rid of this white space.London is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants. Try It. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. CSS W3. CSS Intro W3. CSS Colors W3. CSS Containers W3. CSS Panels W3. CSS Borders W3. CSS Cards W3.
CSS Fonts W3. CSS Text W3. CSS Round W3. CSS Padding W3. CSS Margins W3. CSS Display W3. CSS Buttons W3. CSS Notes W3. CSS Quotes W3. CSS Alerts W3. CSS Tables W3.I wrote a new post about iOS Safari jumps to the top of the page when form elements inside fixed positioned divs receive input.
Fixed positioned layout and content scrolling support arrived to MobileSafari with the release of iOS 5. This articles include also solutions for the this caveats so you should definitely read them.
And this caveats are still there in iOS 6. Another thing that annoys me comes to play when the virtual keyboard displays, e. Somehow fixed positioned elements lose their position, hang somewhere on the page and hide other elements. A lot of pages have a fixed navbar as a header at the top of page. On pages with forms this header could hide information users already put in and this a usability nightmare.
OK, moving the fixed element from the viewport is maybe a feature. Well, maybe…. You should test it on iOS device. To fix this issue we will take advantage of the already defined styles of the involved elements. The goal is to have as little css and js manipulation as possible which keeps things simple and flexible.
We will achieve this by simple changing the elements position from fixed to absolute. Fixed position elements could be everywhere on the page, but this fix adresses headers and footers which are children of the body element. The body has already some padding at top to leverage this space for the header. The header is already positioned top and has a z-index. So does the footer, but its position is bottom of course. We could easily override the position:fixed declaration by adding a inline position:absolute declaration.
So we will use the body element as a controller and add a class to it which adresses the position change in our css. The header and footer are moved offscreen when you focus an input element. This jump is hardly noticeable by the user as there is also the virtual keyboard sliding in. These elements also leverage more space on the viewport, so now you can call it a feature.The position property specifies the type of positioning method used for an element static, relative, absolute, fixed, or sticky.
Note: The sticky value is not supported in Internet Explorer or Edge 15 and earlier versions. A sticky element toggles between relative and fixeddepending on the scroll position.
It is positioned relative until a given offset position is met in the viewport - then it "sticks" in place like position:fixed. If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. Default value: static Inherited: no Animatable: no. Property position 1. Value Description Play it static Default value. Supported in Safari from version 6. Read about inherit.
Example How to position an element relative to its normal position: h2. HOW TO. Your message has been sent to W3Schools. W3Schools is optimized for learning, testing, and training. Examples might be simplified to improve reading and basic understanding. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
The element is positioned based on the user's scroll position A sticky element toggles between relative and fixeddepending on the scroll position.