Ana Tudor 🐯How would you code this with the following constraints:
✅ pure CSS
⚠️ under 10 declarations
⚠️ 1 element
❌ no pseudos
❌ no JS
⚠️ no SVG, no images in general save for at most 2 CSS gradients
Francis Rubio 
@anatudor I would do it with a mix of radial and conic gradients then use blend modes for the checkers effect and then keyframe animation I think?