![]() ![]() Rodney Rehm also wrote a particularly helpful and informational article on CSS transitions which can be found here. There are many different CSS properties that can be transitioned or animated, typically one that have numeric or color values. Note we’re changing background-size this time. The following is an example of that approach. Then set those CSS properties of that element equal to those values you just got. To pause an element’s transition, use getComputedStyle and getPropertyValue at the point in the transition you want to pause it. To trigger an element’s transition, toggle a class name on that element that triggers it. The solution is actually quite simple using JavaScript. There are countless questions on coding forums related to triggering and pausing an element’s transition. In this article, we will cover each of them separately. They offer more fine-grained control as you can control different stops of the animations. When applied, they just run and do their thing. ![]() Transitions in CSS are applied to an element and specify that when a property changes it should do so over gradually over over a period of time. Let’s jump straight in! Quick Note: Animations and Transitions are Different While CSS animation does have some limitations, most of the time it’s more capable than we give it credit for! Not to mention, typically more performant.Ĭoupled with a touch of JavaScript, CSS animations and transitions are able to accomplish hardware-accelerated animations and interactions more efficiently than most JavaScript libraries. Web designers sometimes believe that animating in CSS is more difficult than animating in JavaScript. I’ve had this on my list to write about for way too long, so I was happy to let Zach dig into it and write up this comprehensive tutorial. Zach wrote to me telling me that, as a frequenter on coding forums like Stack Overflow, he sees the questions come up all the time about controlling CSS animations with JavaScript, and proved it with a bunch of links. The following is a guest post by Zach Saucier.
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