# react-parallax [![NPM version][npm-image]][npm-url] ## Install ```sh yarn add react-parallax ``` ### [Demo on codesandbox](https://codesandbox.io/embed/r0yEkozrw?view=preview) ## Contribute If you find any bug or have problems and/or ideas regarding this library feel free to open an issue or pull request. Either way please create a working example so I can reproduce it. Link to a repository or even easier - fork the demo codesandbox project. This would help a lot. This project is maintained during evenings and weekends. If you like it, please consider to buy me a coffee ;-) ...or contribute in other ways.

## Usage examples ### Basic - background image with fixed blur effect ```javascript import { Parallax } from 'react-parallax'; const Container = () => ( Content goes here. Parallax height grows with content height. ); ``` ### Dynamic blur and negative strength for reverse direction ```javascript import { Parallax, Background } from 'react-parallax'; const Container = () => ( Blur transition from min to max

); ``` ### Custom background element Use the background component for custom elements. Unlike the `bgImage` this one will not be scaled depending on the parent/window width. ```javascript import { Parallax, Background } from 'react-parallax'; const Container = () => ( fill murray

); ``` ### Render prop Calculate your own stuff depending on the `percentage` value. ```javascript import { Parallax, Background } from 'react-parallax'; const Container = () => ( (

)} >

... Content

); ``` ## Background Component Child nodes inside this Background will be positioned like the bgImage behind the other children. Unlike the bgImage there is no automatic scaling. ## Props | Name | Type | Default | Description | example | | --------------------- | :-----------: | :-----------------------: | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------| ------------------------------------------------------------------------------------------------------ | | **bgImage** | `String` | | path to the background image that makes parallax effect | | | **bgImageAlt** | `String` | | alt text for bgImage. | | | **bgImageSize** | `String` | | img `sizes` attribute. | | | **bgImageSrcSet** | `String` | | img `srcset` attribute | | | **style** | `Object` | | style object for the component itself | | | **bgStyle** | `Object` | | additional style object for the bg image/children [Valid style attributes](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Properties_Reference) | | | **bgClassName** | `String` | | custom classname for image | | | **contentClassName** | `String` | `react-parallax-content` | custom classname for parallax inner | | | **bgImageStyle** | `Object` | | set background image styling | `{height: '50px', maxWidth: '75px', opacity: '.5'}` | | **strength** | `Number` | `100` | parallax effect strength (in pixel). this will define the amount of pixels the background image is translated | | | **blur** | `Number` | `0` or `{min:0, max:5}` | number value for background image blur or object in format `{min:0, max:5}` for dynamic blur depending on scroll position | | | **renderLayer** | `Function` | | Function that gets a percentage value of the current position as parameter for custom calculationa. It renders a layer above the actual background, below `children`. | `renderLayer={percentage => (

)}` | | **disabled** | `Boolean` | `false` | turns off parallax effect if set to true | `{height: '50px', maxWidth: '75px', opacity: '.5'}` | | **className** | `String` | | set an additional className | | | **parent** | `Node` | `document` | set optional parent for nested scrolling | | | **children** | | | used to display any content inside the react-parallax component | | ## Development ```sh # setup yarn # Development, live reload, JSX transpiling, run: yarn dev ``` Port `3000` on all OS by default. Can be set with option -port=8080 # License MIT [npm-image]: https://img.shields.io/npm/v/react-parallax.svg?style=flat-square [npm-url]: https://www.npmjs.com/package/react-parallax

	Stars	Issues	Version	Updated	Created
parallaxis	6	0	1.2.1	6 years ago	7 years ago
react-parallax	828	13	3.5.1	2 years ago	9 years ago
react-plx			2.1.2	a year ago	7 years ago
react-scroll-parallax	2,802	4	3.4.5	6 months ago	7 years ago

parallaxis vs react-parallax vs react-plx vs react-scroll-parallax

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