dvw/dvh
from
CSSの単位
Dynamic Viewport
https://gyazo.com/01bbc7979794c2691af1296d9056546e https://twitter.com/housecor/status/1519286593269518338
https://www.w3.org/TR/css-values-4/#viewport-variants
https://zenn.dev/futa/articles/90d7410650a73e
https://coliss.com/articles/build-websites/operation/css/large-small-dynamic-viewport-sizes.html