Style-observer: JS to observe CSS property changes, for reals
Read OriginalThis article introduces style-observer, a JavaScript library that enables developers to run code in response to CSS property changes, regardless of whether they were triggered by media queries, user actions, or other JavaScript. It covers the history of style observation attempts, limitations of previous solutions, and the technical breakthroughs that made this new, more robust implementation possible for observing both animatable properties and custom CSS properties.
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