The author discusses using the CSS backdrop-filter property to create frosted glass effects on websites. This effect adds depth and realism to projects. The author delves into how to optimize the frosted glass effect by considering nearby elements for better blurring, solving issues with pointer events, flickering top issues, and creating thicker glass effects. The article also covers browser support and an advanced technique to create a 3D glass effect. The final code is included for readers to use. The author also mentions their CSS course for further learning. The content is informative, practical, and showcases creative CSS techniques.
https://www.joshwcomeau.com/css/backdrop-filter/