![]() ![]() Plus, smooth scrolling isn’t always good in the first place. There are various JavaScript libraries that attempt to add smooth scroll support for the mousewheel action, but I’ve yet to find one that is bug-free and plays nicely with all other scroll technologies. ![]() Generic smooth scrolling that smooths out mouse wheel actions is not supported natively in all browsers at this time. Smooth scrolling is supported natively when jumping from section to section within a page using window.scrollTo() in JavaScript or even the scroll-behavior property in CSS. For a solid overview, check out this article by Preethi. That said, a polyfill is required for IE support and some mobile browsers. It’s straightforward and built into modern browsers. If all you need is for an element to stay in the same place on scroll for a portion of the page, using position: sticky is a good option. In some limited use cases, they can be sufficient for your scroll animation needs. ![]() There are a few simple native CSS scroll effects that are supported by modern browsers. Technologies for specific scroll-related behaviors I’d argue that these technologies can be broken down into two broad categories: ones for specific scroll-related behaviors and ones for more generic scroll-related behaviors. There are a number of scroll-related technologies out there, so this article’s aim is to provide an overview of them and tools to help choose the one that’s right for you. In recent years, they’ve started to become more common, perhaps in part due to devices being higher-performing and thus able to handle more animation. You can change it here to any percentage you want.ĭestroy a simpleParallax instance: var images = document.Scroll-related animations have been used on the web for years. By default, it translates from 0% to 100% of the user viewport. The maxTransition setting should be used to stop the parallax animation after a given percentage. If you specify your custom wrapper, the plugin will add the "simpleParallax" class along with an "overflow: hidden" style. In some cases, you want to use your own wrapper instead of the one created by the plugin. In some cases, the images may be in a container that has its own scroll area, so to have an accurate calculation, the custom container should be set. For example you can use ease or ease-in-out.īy default, the parallax calculation is done with the body scroll percentage. This setting will add any CSS transition to the delay setting. The transition setting works closely with the delay setting. When a delay is set, the translation of the image will continue during that delay when the user stops scrolling. When overflow is set to true, the image will translate out of its natural flow (so it may overlap with your content). More information are available if you read the case study here.īy default, the image is scaled to apply a parallax effect without any overflow on the layout - you can check the case study to have a better understanding. So you can choose a 750px image to replace your 500px one, and don't see any quality leak. To reduce the lossless effect, if the scale is set at 1.5 and your image is 500px width, do the simple math 500 * 1.5 = 750. In return, the image will lose in quality. The higher the scale is set, the more visible the parallax effect will be. When 2 directions are combined (for example down right), the image will translate diagonally. Same logic apply for all others orientations (right, down, left, up left, up right, down left or down right). When scrolling up, the image will translate from the top to the bottom. Choose up and when scrolling down, the image will translate from the bottom to the top (so the image will translate up). This is the orientation (or direction) of the parallax effect. It should be a percentage between 1 and 99 Up - right - down - left - up left - up right - down left - left right You can also choose to apply the parallax on multiple images: var images = document.querySelectorAll('img') Simply add the following JavaScript code: var image = document.getElementsB圜lassName('thumbnail') Import simpleParallax from 'simple-parallax-js' Ĭonst simpleParallax = require('simple-parallax-js') Initialization You can also install it via npm/yarn // npmĪnd then import it as follows: // ES6 import Simply copy/paste the below snippet just before your closing tag:
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