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HTML

CSS

CSS Base

Vendor Prefixing

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JavaScript

Babel includes JSX processing.

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Packages

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Behavior

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Editor Settings

Code Indentation

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HTML

              
                .scene
  .container
    .container__resize Resize Me!
    .container__fixed-content
              
            
!

CSS

              
                *
  box-sizing border-box
  
body
  min-height 100vh
  display grid
  place-items center
  justify-content center
  
.scene
  height 80vmin
  width 200px
  background hsl(204, 80%, 50%)
  position relative
  
.container
  contain layout inline-size
  --css-contain layout inline-size
  position absolute
  top 0
  left 50%
  transform translate(-50%, 0)
  
.container__resize
  text-align center
  font-family sans-serif
  min-height 100px
  max-height 80vmin
  padding-top 1rem
  width 100px
  resize vertical
  overflow hidden
  background hsl(15, 80%, 50%)
  
.container__fixed-content
  position fixed
  right 0%
  top 0%
  height 100px
  background hsl(280, 50%, 60%)
  width 100px
  
@container (min-height 200px)
  .container__fixed-content
    background hsl(104, 50%, 60%)

@media --css-container and (min-height 200px)
  .container__fixed-content
    background hsl(104, 50%, 60%)
              
            
!

JS

              
                import { cqfill } from 'https://cdn.skypack.dev/cqfill@0.5.0'
cqfill()
              
            
!
999px

Console