Short video - Filtres CSS (grayscale, hue-rotate, blur, saturate...)

18 Dec 2022 · 2 min
1:48

In this French‑language YouTube short, the presenter demonstrates how to use CSS filter effects on HTML images. He shows two identical images side‑by‑side—one original and one “modified.” The tutorial walks through selecting the modified image with a CSS selector, applying the `filter` property, and stacking multiple filter functions. The focus is on the `grayscale` filter: its purpose (convert to black‑and‑white), acceptable value formats (percentage 0‑100 % or scalar 0‑1), and visual results at the extremes (0 %/0 = no change, 100 %/1 = full grayscale). The speaker explains that intermediate decimal values produce partial desaturation, and demonstrates the effect by refreshing the page.

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