Background layers in motion: gradients that drift, grids that shift, particles, waveforms, mosaics and interactive fields that answer the cursor. Drawn in CSS and plain JavaScript, so there is no library and no large file behind them. Every one is a single HTML file with no framework and no build step, so paste it into Claude Code, Replit, Lovable, ChatGPT Codex, Bolt, or Cursor and describe the content you want on top.
A full width layer behind your headline and call to action that stays in motion while a visitor reads. It carries atmosphere without asking for attention.
These are CSS and plain JavaScript with no library and no video, so the cost is small. Keep the motion slow and the effect stays cheap as well as calm.
Slower than feels right at first. A background a visitor notices is one that stopped them reading.
Yes, and that is the usual first edit. Paste it into your AI coding tool and name your brand colours.
Narrow it down
Works with any vibe coding tool
