postcss-html is a PostCSS syntax parser and stringifier designed specifically for HTML-like files. It enables you to use PostCSS to process styles embedded within HTML, supporting various HTML dialects like .html, .php, and .vue. It intelligently extracts CSS from <style> tags and attributes so you can apply powerful PostCSS transformations. This facilitates consistent styling across your entire project, bridging the gap between markup and CSS while leveraging PostCSS's extensive plugin ecosystem.