To develop efficient CSS, prioritise class selections based on their specificity and reusability, use ID selectors sparingly, and avoid complex selectors to keep your stylesheet simple and scalable.

In this first piece on efficient CSS, we look at selectors, how the browser reads them, and how to make yours more effi. ... Universal refers to tags that target every element on the page, such as *.

The "correct way" to strip out CSS rules might be: Read in all the CSS files, and extract all the selectors; For each HTML file, execute each selector and see if it returns anything; Use that data to ...

The latest version of Meyer’s reset stylesheet dispenses with a few CSS rules that probably aren’t necessary anymore — for example, the font selector in the first reset rule — and adds ...

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2. Use specific styles. Don't apply styles to universal selectors, descendent selectors and top-level HTML elements. Doing so can trigger many Boolean evaluations. Instead, optimize CSS performance ...