• A CSS methodology that uses short, single-purpose classes to apply specific styling properties directly to HTML elements (such as .text-center, .mb-4, or .bg-blue-500). While maintaining language-level separation between HTML structure and CSS styling, it effectively creates presentational HTML by embedding styling decisions directly in markup, prioritizing rapid development and consistency over semantic class naming.

1. Related terms: Presentational HTML, Atomic CSS, HTML/CSS framework, Style sheet
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