Authoring critical above-the-fold CSS

Google PageSpeed Insights and my web pages; it was a match made in heaven, until things changed… PageSpeed started telling me I needed to optimise my CSS delivery, that my CSS files were render-blocking, that none of the above-the-fold content of my page could render without waiting for those files to load, and that I should in-line the critical portions of those files directly into my HTML.

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