We change our animation delays for our images to the following. ![]() Negative animation delays as stated in the referenced article “start the animation immediately, as if that amount of time has already gone by.” This works for us because any scrolling of the email will pause all animations since they are already running so the animations don’t lose sync. Thankfully, there’s another option, and that is to use negative animation delays. One solution is to not use animation delay, but that would be a huge setback. ![]() This can potentially cause timing issues if the user scrolls the email after the first animation has started but the animations for other images have yet to start. However, it does not pause the animation delay timer. In iOS9 the email client pauses animations when the user scrolls the email. Specifically, we’ll shift their z-index positions up and down depending on which part of the animation the image is in.carousel a Using Negative Animation Delay to Address iOS Scroll Quirk We’ll now use the following CSS to cycle through the images in the carousel. This will display the last image on top instead of the first. Then we’re going position the images so they overlap each other using absolute positioning. The basics of this carousel are pretty straightforward we start with a div containing a set of images with links. View completed demo (Use Chrome or Safari to see the animation) The carousel we’ll be building will contain three images, although you should be able to customize it for as many images as you like. If you’re new to CSS animations, check out this helpful primer by Alex Ilhan. ![]() Subsequent articles will add effects such as pan and zooming and sliding. Other clients will display the fallback content. Since CSS animations mostly only work in Webkit based clients, the carousel will be active in iOS Mail (iPhone, iPad), Apple Mail and Outlook for iOS and Mac. This article will cover how to build a basic carousel that will fade from one image to the next. This is the first part of a multi-part tutorial series on how to create an animated image carousel that works in email clients that support CSS animation.
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