Adam Argyle on Twitter: "Animate opacity and not a blur() filter. See it in this demo: The blur() animation has awkward viewport edge blurring. Opacity animation doesn't. Also, the effort level (CPU
How to use CSS filter & CSS Animation on images – Thibault Jan Beyer
Opacity Property in CSS | CSS Essential Guides
filters.css - CSS only library to apply color filters.
Opacity CSS — TutorialBrain
CSS Opacity and Transparency Tips - CSS Reset
Opacity in CSS | Guide to Implement Opacity in CSS with Examples
CSS Filter - Opacity
mask-mode | CSS-Tricks - CSS-Tricks
Blend Mode and CSS Filters | Elementor
Fixing Browser Compatibility Issues With CSS Opacity & RGBA
CSS Image Opacity/Transparency
How to Darken an Image with CSS - DEV Community
A Thing To Know about Gradients and "Transparent Black" | CSS-Tricks - CSS -Tricks
How to Apply Filters and Control an Image's Opacity with CSS