Live and learn. Either CSS is developing so fast, or I'm so slow, but I feel like I knew 80% of CSS in 2015, and now I know at most 50%. Today we'll talk about env function in CSS. Yeah... there are environment variables in CSS, just like in NodeJS 🤯 The env() CSS function can be used to insert the value of a user-agent defined environment variable into your CSS. The syntax is simple: env(<environment-variable>, <fallback>) But what kind of environment variables do we have and how can we use...

When I first dived into the topic of colors, it seemed to me that I was at least studying nuclear physics. It still does, though. 😅 Disclaimer: I might have some inaccuracies in this article. Sometimes I used definitions provided by Google AI, because it was challenging for me to convey/explain the ideas with precise words. But mostly there are links and definitions from Wikipedia and other resources. There are many notions and abbreviations: CIE 1931, RGB, sRGB, HSL, CMYK, Oklab, LCH, OKLCH,...

There is the grayscale filter in CSS that can make your pictures completely grayscale. It's useful when you want to show a bunch of logos, making them grayscale by default, but when you hover over them, they become colorful. But! Another trick is to use grayscale on the <html> tag. This way you can look at your app from a different perspective and see how it looks without colors. This is useful if you want to see what draws users' attention most, whether such elements as links, buttons, and...