Posted almost 4 years ago. Visible to the public. Linked content.

object-fit polyfill by lazysizes

All new browsers support the new object-fit CSS property. It allows to specify how an element behaves within its parent element and is intended for images and videos. The most useful values are contain (fit-in) and cover (crop).

Unfortunately, IE does not support this yet. However, if you're already using lazysizes, you can use its object-fit polyfill!


In your Javascript manifest, require them like this:

#= require plugins/object-fit/ls.object-fit #= require lazysizes

Now use the mixin below to fit an image into a container. Example:

# HAML .image = image_tag post.image
# SASS .image +object-fit(cover, $aspect-ratio: 52%)

Sass Mixin

= object-fit($mode, $aspect-ratio) position: relative // Anchor for img &::before // Generate height space for the img content: '' display: block width: 100% height: 0 padding-bottom: $aspect-ratio // Aspect ratio img display: block position: absolute top: 0 left: 0 height: 100% width: 100% object-fit: $mode font-family: "object-fit: #{$mode}" // Configure lazysizes' polyfill

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Owner of this card:

Dominik Schöler
Last edit:
almost 4 years ago
by Dominik Schöler
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License for source code
Posted by Dominik Schöler to makandra dev
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