![]() The transition and keyframes CSS syntax is simple and powerful.The simplest way to animate an element is to add a class when it reaches the indicated point on the screen and thus be able to delegate all animations and changes to the CSS.Ĭompared to a pure JavaScript approach, this introduces a number of benefits: This module simply exposes a small data-attributes based API that allows you to create animations directly with HTML and CSS, without having to write a single line of JavaScript. In a sense, Scrollama is the heir of Waypoints.js, another well-known library whose spirit is also to provide the necessary tools and abstractions to operate… and nothing more.Īfter choosing the tool, we developed and contributed a simple Drupal module to streamline the development process. Instead of including a whole library of pre-made animations and functionalities of all kinds, Scrollama focuses on exposing a simple and minimalistic API that detects the input/output of elements, leaving the developer to choose how to react. ![]() It was one of the first libraries to use IntersectionObserver.When dealing with animations in, we opted for Scrollama for two main reasons: Until a few years ago, scroll libraries had to listen to scroll events or even replace the native scroll with a simulated one ( scrolljacking), which caused major performance problems, especially on mobile (jumpy scroll, interrupted scroll, etc.).įortunately, today we have the IntersectionObserver API that allows us to operate in a much more precise way. In this tutorial we are going to tell you step by step how we recently added micro-animations to and how you can do it on your own sites using our new contrib module and the Scrollama.js library. It is a technique that we can see in hundreds of sites such as, for example, the website of Opigno or this Netlify minisite. ![]() In its simplest form, this technique can be used to make certain elements "appear" when they reach a fixed point on the screen, thus giving a sense of greater dynamism and catching the user's attention. For some years now, a series of techniques have been quite popular with a common point: the introduction of animations or interactions linked to the user's progress through the page (scroll) that often allow us to "tell" a story (scrollytelling). ![]()
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