Package for a progressive loading of an image
npm install @appstractdk/as-progressive-imagehtml
`
sourse should contain a link to a small preview image(e.g. 20px width highly-compressed jpeg).
The actual full-resolution image source should be defined under data-full-resolution-image attribute.
IMPORTANT: all of the images have to have an exact same aspect ratio.
*You are also welcome to use HTML5 image srcset and sizes` attributes.