CSS plays a significant role in SEO, particularly regarding Google's ability to crawl and index content. Google's SEO guidelines emphasize making CSS files crawlable. CSS file sizes have increased over the years, with the median size in 2022 being approximately 68-72kB. Complex frameworks can lead to larger files, although unused rules may be optimized. While class names have no direct SEO impact, pseudo-elements like `::before` and `::after` should be used for decoration, as they are omitted from the DOM and do not influence indexing.
Google's guidelines recommend making CSS files crawlable. While CSS has implications for SEO, crawlers typically parse HTML for text content and ignore class names.
The median stylesheet size in 2022 was around 68-72kB, with growth in file sizes influenced by modern frameworks. Unused rules can be removed to optimize size.
The `!important` declaration in CSS does not impact SEO; instead, it’s a workaround for applying styles amid conflicting rules in complex scenarios.
CSS pseudo-elements like `::before` and `::after` are for decorative purposes and do not contribute to the DOM, thus not affecting Google’s rendering and indexing.
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