O Style Stage segue a mesma ideia do CSS Zen Garden, um layout com um html padrão que é modificado com CSS. A grande diferença é que o Style Stage foi pensado com recursos avançados do CSS 3. Nos exemplos temos gradientes, fontes com cores em diversos padrões, animações, posicionamento e layouts muito flexíveis e responsivos.

Alguns exemplos de recursos que podem ser utilizados no Style Stage
Flexbox, Grid, custom variables, @supports(), gradients, animation, 3D transforms,
object-fit, :focus-within, calc(), min() / max() / clamp(), viewport units, scroll-(margin/padding/snap), position: sticky, two-value display, expanded media query values, variable fonts

Alguns exemplos:

https://stylestage.dev/styles/eighties-synthwave/
https://stylestage.dev/styles/color-stages/
https://stylestage.dev/styles/spectrum/
https://stylestage.dev/styles/floral-vibes/
https://stylestage.dev/styles/queer-modes/
https://stylestage.dev/styles/pink-outside-the-box/
https://stylestage.dev/styles/pink-lime/
https://stylestage.dev/styles/crawling-chaos/
https://stylestage.dev/styles/colorful-cards/
https://stylestage.dev/styles/comic/
https://stylestage.dev/styles/desoto/
https://stylestage.dev/styles/fresh/
https://stylestage.dev/styles/gallery/
https://stylestage.dev/styles/happy-halloween/
https://stylestage.dev/styles/headquarters/
https://stylestage.dev/styles/jet-set/
https://stylestage.dev/styles/manual/
https://stylestage.dev/styles/mburucuya/
https://stylestage.dev/styles/neon-beetles/
https://stylestage.dev/styles/plainnsimple/
https://stylestage.dev/styles/yellowed/
https://stylestage.dev/styles/vibrant/
https://stylestage.dev/styles/transparency/
https://stylestage.dev/styles/trafalgar/
https://stylestage.dev/styles/sweet-n-sp00ky/
https://stylestage.dev/styles/the-styles-must-go-on/
https://stylestage.dev/styles/stageflix/
https://stylestage.dev/styles/stageos/
https://stylestage.dev/styles/soff/
https://stylestage.dev/styles/skewten/
https://stylestage.dev/styles/shimmering-stars/
https://stylestage.dev/styles/retro-cyberpunk/

https://stylestage.dev/styles/a-scottish-landscape/
https://stylestage.dev/styles/abandoned-stage/
https://stylestage.dev/styles/aerojet-505/
https://stylestage.dev/styles/animado/
https://stylestage.dev/styles/artsy-blue-and-turquoise/
https://stylestage.dev/styles/at-the-desk/
https://stylestage.dev/styles/atomic-clock/
https://stylestage.dev/styles/barebones/
https://stylestage.dev/styles/blue-beast/
https://stylestage.dev/styles/blueprint/
https://stylestage.dev/styles/borlandish/
https://stylestage.dev/styles/css-cli/
https://stylestage.dev/styles/dark-purple/
https://stylestage.dev/styles/drawing-board/
https://stylestage.dev/styles/geocities/
https://stylestage.dev/styles/hackytoberfest/
https://stylestage.dev/styles/liquid-style/
https://stylestage.dev/styles/web-2.0-lobster-party/
https://stylestage.dev/styles/monominimal/
https://stylestage.dev/styles/pastels-and-columns/
https://stylestage.dev/styles/pilgrim/
https://stylestage.dev/styles/propaganda/
https://stylestage.dev/styles/purpleland/
https://stylestage.dev/styles/purplify-and-pastel/
https://stylestage.dev/styles/we-love-teal/
https://stylestage.dev/styles/solidstate/
https://stylestage.dev/styles/slide-stage/#files
https://stylestage.dev/styles/russian-inspiration/
https://stylestage.dev/styles/retroish/
https://stylestage.dev/styles/retro-modern/