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JavaScript to test each CSS class on a page and report which are hindering performance
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CSS Stress Test

This project is a bookmarklet for stress testing the CSS on any given webpage.
It indexes all the elements and their classes, and then--class by class--it removes one, and times how long it takes to scroll the page. Selectors that save a considerable amount of time when removed indicate problem areas.

To install the bookmarklet, visit my blog post on this project:


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