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Discussion on: Dark Mode With One Line Of Code

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louislow profile image
Louis Low

This is to solve all that above problems with a little modification. Like you suggested, inverting the whole page would also be inverting the images which are not a complete solution. We can apply two steps to make it a nearly silver bullet.

Step #1: invert all elements

html {
  filter: invert(1) hue-rotate(180deg)
}
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Step #2: invert-back and restore image color

Invert and rotate the hue color to 180 degrees to revert and restore the image original color with this below.

img, picture, video {
  filter: invert(1) hue-rotate(180deg)
}
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Optional compensation for element that is stubborn.

[class="invert"] {
  filter: invert(1) hue-rotate(180deg)
}
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<div class="invert">
  ...
</div>
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ekaterina_vu profile image
Ekaterina Vujasinović

Loouis, I partially agree with you - this is a great way to solve the inverted images problem. But, there is a whole list of problems to be solved separately when inverting all the pixels, not only images. E. g. if you just invert the colors of the complex UI, there is a great chance it won't look good and you'll need a lot of adjustments. So, yes, nearly silver bullet but only for very simple design.

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adam_cyclones profile image
Adam Crockett 🌀

I was going to say that haha. Adjustment required. I should read all the comments first.

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druiznyc profile image
Daniel Ruiz

If you just use the :not() css selector you don't need the code above. This solves the issue and doesn't waste processor power on converting and unconverting images with the filter tag

.dark-mode :not(img):not(.inverted){ filter: invert(100%) }

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humayunkabir profile image
Humayun Kabir

I tried to resolve the issue according to both Loouis Low and Daniel Ruiz way. Both are great solutions. But facing problem with the background image. Any workaround, guys?

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robertotonino profile image
Roberto Tonino

That [class="invert"] scared me a little bit. Great solution though.

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louislow profile image
Louis Low

If don't want such cumbersome. Why not using a CSS framework. You can dynamically add dark mode to any element, it's easy. Read this article.