Developer rebuilds Doom using only CSS and HTML, turning divs into a full 3D game engine

Leenheer is best known for creating HTML5test.com, the WhichBrowser user-agent parser. He began exploring a CSS-based Doom ...
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You can turn Chrome's address bar into a notepad with one line of text

Create a browser notepad instantly.

You can now run OpenAI’s Codex inside Claude Code: Here’s how

OpenAI took the coding agent rivalry to Claude’s coding terminal. OpenAI has developed a plugin to run its Codex agent inside ...