Firefox style lightbox for images

Added by xiagu_@userstyles, Created: Sep 30, 2015, Updated: Oct 12, 2015
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For pages that are just an image, this style centers the image on the middle of the page with a dark background. Supports transparent images.

This replicates a feature in Firefox for other browsers.

More info
Version 1.1.1

Shamelessly cribbed directly from Firefox's own CSS.

Example URLs: (since Userstyles won't allow images)Change log:
  • 10/12/2015 - 1.1.1
    • Fixed bug in Chrome where very tall images would get assigned negative margins.
  • 10/5/2015 - 1.1
    • Updated to work with Imgur gifv
    • Active on .webp now

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Applies to:
CC0 1.0 Universal.
xiagu_@userstyles has waived all copyright and related or neighboring rights to Firefox style lightbox for images, to the extent allowed by law.

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