lazysizes

High performance (jankfree) lazy loader for images (including responsive images), iframes and scripts (widgets).

v5.3.2 URL: https://unpkg.com/lazysizes@5.3.2/lazysizes.js

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object-fit-cover

A polyfill for the background-image cover effect combined with responsive image behaviour with the `<img>` or `<picture>` element.

v1.0.4 URL: https://unpkg.com/object-fit-cover@1.0.4/objectfitcover.js

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respimage

The fast, lightweight and reliable polyfill for responsive images (i.e. picture element and the srcset, sizes and media attributes). With a smart resource selection algorithm, that saves bandwidth.

v1.4.2 URL: https://unpkg.com/respimage@1.4.2

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picturefill-background

A Responsive Images approach like Picturefill but managing a picture on background-image css attribute.

v1.0.3 URL: https://unpkg.com/picturefill-background@1.0.3/picturefill-background.js

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gulp-responsive

gulp responsive images

v3.0.1 URL: https://unpkg.com/gulp-responsive@3.0.1/lib/index.js

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