CSS counters let developers automate numbering purely in CSS, replacing manual HTML lists and variables. Define counters with counter-reset, increment with counter-increment, and display via counter(). Examples show nested section/article schemes, multiple counters, and prefixes/suffixes using attr(), enabling cleaner, dynamic headings and scalable, semantic layouts.
CSS counters let you auto-number elements purely with CSS—no JavaScript—using counter-reset and counter-increment, then output via pseudo-elements. This guide explains the basics and shows practical patterns: styling ordered lists, building nested table-of-contents numbering (e.g., 2.1, 2.2), and paginating sections, with tips to handle dynamic content and cleaner, maintainable markup.
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