The CSS through HTML extension for Visual Studio Code simplifies the process of creating CSS styles from classes and IDs defined in HTML files. This tool allows you to quickly generate CSS rules, ...

HTML id and class attribute completion for Visual Studio Code. Remote and local style sheets with optional glob patterns and variable substitutions can be specified in VS Code settings per workspace ...

Now [Andy Green] has extended the possibilities with affordable silicon, by producing a proof-of-concept HTML + CSS renderer over h2 on ESP32 for libwebsockets.