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@cleverage/responsive-video-background

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  • License MIT

A JavaScript library to help build components with responsive video and/or image background

Package Exports

  • @cleverage/responsive-video-background
  • @cleverage/responsive-video-background/responsive-video-background.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@cleverage/responsive-video-background) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

<responsive-video-background /> Web Component

npm npm GitHub Built by Clever Age

A Web Component that helps responsively using a video as the background of a content block. The video usage can be restricted to large viewports, with an image fallback on thinner ones.

The dimensions of the Web Component are determined by the content inside it. You can style the Web Component with CSS, but it is better to style the content itself, as there could be a layout shift with the component's styles because JavaScript has to run to really make it available.

Examples

See on https://cleverage.github.io/responsive-video-background/

Usage

Syntax

The Web Component's configuration is done with attributes:

<style>
/* …inline CSS styles for the component, to prevent layout shifts */
</style>
<responsive-video-background
    class=""
    webm="video.webm"
    mp4="video.mp4"
    poster="video-poster.jpg"
    fallback="not-responsive-image.jpg"
    srcset="image-320.jpg 320w, image-640.jpg 640w, image-1024.jpg 1024w"
    sizes="calc(100vh - 2rem)"
    breakpoint="48rem">
  Some content…
</responsive-video-background>

API

Attribute Description Example
webm URL to the WebM version of the video https://cleverage.github.io/responsive-video-background/demo/Big_Buck_Bunny_720_10s_1MB.webm
mp4 URL to the MP4 version of the video https://cleverage.github.io/responsive-video-background/Big_Buck_Bunny_720_10s_1MB.mp4
poster URL to the video's poster image. This should be the first frame of the video, and an highly optimized progressive JPEG https://cleverage.github.io/responsive-video-background/Big_Buck_Bunny_720.jpg
fallback URL to the fallback image, for the src attribute https://example.com/path/to/image-fallback.jpg
srcset Value of the srcset attribute for the responsive image https://example.com/path/to/image-320px.jpg 320w, https://example.com/path/to/image-850px.jpg 850w, https://example.com/path/to/image-1600px.jpg 1600w
sizes value of the sizes attribute for the responsive image calc(100vh - 2rem)
breakpoint Viewport width breakpoint, if there should be an image on thin viewports and a video on larger viewports 48rem

If the srcset option is set, these other ones are mandatory:

  • webm and/or mp4
  • fallback
  • sizes

If the breakpoint option is set, these other ones are mandatory:

  • webm and/or mp4
  • fallback
  • srcset
  • sizes

FAQ

Question Answer
Why isn't the image switching to a video when the viewport becomes larger? This is not a bug. The idea is to prevent a strong visual change when the user changes the viewport, either by resizing the browser, or rotating the device.