Ben Nadel • 1/17/2026

Animating DOM Rectangles Over Focused Elements In JavaScript

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This technical article details a JavaScript experiment to replace the browser's default focus outline with a custom, animated rectangle that moves between focused elements. The author explains the motivation, deconstructs the CSS and JavaScript required to calculate DOMRect positions and animate a visual indicator, while cautioning that it's a demo of technique rather than a recommended UX pattern.

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#JavaScript #css #accessibility
Animating DOM Rectangles Over Focused Elements In JavaScript

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