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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

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JavaScript

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Babel includes JSX processing.

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Packages

Add Packages

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HTML 

              
                mixin container(className, float)
  .container(class=className)
    .item.foo(class=float ? 'block-item' : 'flex-item')
      span.item-width
      span.text
    .item.bar(class=float ? 'block-item' : 'flex-item')
      span.item-width
      span.text
    .item.baz(class=float ? 'block-item' : 'flex-item')
      span.item-width
      span.text

.wrapper
  - var i = 0
  .measure
    while i < 36
      .unit
        - i++
  span.desc
    | block & float
    br
    span.ok
      | 60 + 120 + 180
  +container('block-container', true)
  span.desc
    | flex-grow 1:2:3 & width auto
    br
    | 360 - (40 + 40 + 40) = 240
    br
    | (40 + 1/6 * 240) + (40 + 2/6 * 240) + (40 + 3/6 * 240)
    br
    span.ok
      | 80 + 120 + 160
  +container('flex-grow-container-widthauto')
  span.desc
    | flex-grow 1:2:3 & width auto & padding 20
    br
    | 360 - (80 + 80 + 80) = 120
    br
    | (80 + 1/6 * 120) + (80 + 2/6 * 120) + (80 + 3/6 * 120)
    br
    span.ok
      | 100 + 120 + 140
  +container('flex-grow-container-widthauto-padding20')
  span.desc
    | flex-grow 1:2:3 & width auto & margin 20
    br
    | 360 - (80 + 80 + 80) = 240
    br
    | (80 + 1/6 * 240) + (80 + 2/6 * 240) + (80 + 3/6 * 240)
    br
    span.ok
      | 60 + 80 + 100 + (margin 120)
  +container('flex-grow-container-widthauto-margin20')
  span.desc
    | flex-grow 1:2:3 & basis 0
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.ok
      | 60 + 120 + 180
  +container('flex-grow-container-basis0')
  span.desc
    | flex-grow 1:5:6 & basis 0
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/12 * 360) + (0 + 5/12 * 360) + (0 + 6/12 * 360)
    br
    span.warn 30 + 150 + 180 [IE11]
    br
    | (40-10) + (150) + (180)
    br
    | (40) + (0 + 5/11 * 320) + (0 + 6/11 * 320)
    br
    span.warn 40 + 145.4545... + 174.5454... [Chrome, Firefox, Safari, Edge]
  +container('flex-grow-container-basis0-1_5_6')
  span.desc
    | flex-grow 1:2:3 & basis 0 & content 80
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.warn 60 + 120 + 180 [IE11]
    br
    | (80-20) + (120) + (180)
    br
    | (80) + (0 + 2/5 * 280) + (0 + 3/5 * 280)
    br
    span.warn 80 + 112 + 168 [Chrome, Firefox, Safari, Edge]
  +container('flex-grow-container-basis0-content80')
  span.desc
    | flex-grow 1:2:3 & basis 0 & content 120
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.warn 60 + 120 + 180 [IE11]
    br
    | (120-60) + (120) + (180)
    br
    | (120) + (0 + 2/5 * 240) + (0 + 3/5 * 240)
    br
    | (120) + (96) + (144)
    br
    | (120) + (120 - 24) + (144)
    br
    span.warn 120 + 120 + 120 [Chrome, Firefox, Safari, Edge]
  +container('flex-grow-container-basis0-content120')
  span.desc
    | flex-grow 1:2:3 & basis 0 & content 160
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.warn 60 + 120 + 180 [IE11]
    br
    | (160-100) + (160-40) + (180)
    br
    | (160) + (160) + (180-140)
    br
    span.warn 160 + 160 + 160 [Chrome, Firefox, Safari, Edge]
  +container('flex-grow-container-basis0-content160')
  span.desc
    | flex-grow 1:2:3 & width 0
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.ok
      | 60 + 120 + 180
  +container('flex-grow-container-width0')
  span.desc
    | flex-grow 1:5:6 & width 0
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/12 * 360) + (0 + 5/12 * 360) + (0 + 6/12 * 360)
    br
    span.ok 30 + 150 + 180
  +container('flex-grow-container-width-1_5_6')
  span.desc
    | flex-grow 1:2:3 & width 0 & content 80
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.ok 60 + 120 + 180
  +container('flex-grow-container-width0-content80')
  span.desc
    | flex-grow 1:2:3 & width 0 & content 120
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.ok 60 + 120 + 180
  +container('flex-grow-container-width0-content120')
  span.desc
    | flex-grow 1:2:3 & width 0 & content 160
    br
    | 360 - (0 + 0 + 0) = 360
    br
    | (0 + 1/6 * 360) + (0 + 2/6 * 360) + (0 + 3/6 * 360)
    br
    span.ok 60 + 120 + 180
  +container('flex-grow-container-width0-content160')
  span.desc
    | flex-grow 1:2:3 & width 0 & padding 20
    br
    | 360 - (40 + 40 + 40) = 240
    br
    | (40 + 1/6 * 240) + (40 + 2/6 * 240) + (40 + 3/6 * 240)
    br
    span.ok
      | 80 + 120 + 160
  +container('flex-grow-container-width0-padding20')
  span.desc
    | flex-grow 1:2:3 & width 0 & margin 20
    br
    | 360 - (40 + 40 + 40) = 240
    br
    | (40 + 1/6 * 240) + (40 + 2/6 * 240) + (40 + 3/6 * 240)
    br
    span.ok
      | 40 + 80 + 120 + (margin 120)
  +container('flex-grow-container-width0-margin20')
  span.desc
    | block & float
    br
    span.ok
      | 120 + 120 + 120
  +container('block-container-120', true)
  span.desc
    | flex-shrink 1:2:3 & basis 160
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.ok
      | 140 + 120 + 100
  +container('flex-shrink-container-basis160')
  span.desc
    | flex-shrink 1:2:3 & basis 200
    br
    | 360 - (200 + 200 + 200) = -240
    br
    | (200 - 1/6 * 240) + (200 - 2/6 * 240) + (200 - 3/6 * 240)
    br
    span.ok
      | 160 + 120 + 80
  +container('flex-shrink-container-basis200')
  span.desc
    | flex-shrink 1:2:3 & basis 360
    br
    | 360 - (360 + 360 + 360) = -720
    br
    | (360 - 1/6 * 720) + (360 - 2/6 * 720) + (360 - 3/6 * 720)
    br
    span.warn 240 + 120 + 0 [IE11]
    br
    | (240) + (120) + (40-40)
    br
    | (240 - 1/3 * 40) + (120 - 2/3 * 40) + (40)
    br
    sapn.warn 226.6666... + 93.3333... + 40 [Chrome, Firefox, Safari, Edge]
  +container('flex-shrink-container-basis360')
  span.desc
    | flex-shrink 1:2:3 & basis 360 & min-width 0
    br
    | 360 - (360 + 360 + 360) = -720
    br
    | (360 - 1/6 * 720) + (360 - 2/6 * 720) + (360 - 3/6 * 720)
    br
    span.ok 240 + 120 + 0
  +container('flex-shrink-container-basis360-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 160
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.ok
      | 140 + 120 + 100
  +container('flex-shrink-container-width160')
  span.desc
    | flex-shrink 1:2:3 & width 200
    br
    | 360 - (200 + 200 + 200) = -240
    br
    | (200 - 1/6 * 240) + (200 - 2/6 * 240) + (200 - 3/6 * 240)
    br
    span.ok
      | 160 + 120 + 80
  +container('flex-shrink-container-width200')
  span.desc
    | flex-shrink 1:2:3 & width 360
    br
    | 360 - (360 + 360 + 360) = -720
    br
    | (360 - 1/6 * 720) + (360 - 2/6 * 720) + (360 - 3/6 * 720)
    br
    span.warn 240 + 120 + 0 [IE11]
    br
    | (240) + (120) + (40-40)
    br
    | (240 - 1/3 * 40) + (120 - 2/3 * 40) + (40)
    br
    sapn.warn 226.6666... + 93.3333... + 40 [Chrome, Firefox, Safari, Edge]
  +container('flex-shrink-container-width360')
  span.desc
    | flex-shrink 1:2:3 & width 360 & min-width 0
    br
    | 360 - (360 + 360 + 360) = -720
    br
    | (360 - 1/6 * 720) + (360 - 2/6 * 720) + (360 - 3/6 * 720)
    br
    span.ok 240 + 120 + 0
  +container('flex-shrink-container-width360-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & padding 20
    br
    | 360 - (200 + 200 + 200) = -240
    br
    | (200 - 1/6 * 240) + (200 - 2/6 * 240) + (200 - 3/6 * 240)
    br
    span.ok
      | 160 + 120 + 80
  +container('flex-shrink-container-basis160-padding20')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & margin 20
    br
    | 360 - (200 + 200 + 200) = -240
    br
    | (200 - 1/6 * 240) + (200 - 2/6 * 240) + (200 - 3/6 * 240)
    br
    span.ok
      | 120 + 80 + 40 + (margin 120)
  +container('flex-shrink-container-basis160-margin20')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & padding 40
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (120-60) #[span.warn |] (180) + (120) + (80 - 20)
    br
    | (180-60) + (120) + (120) #[span.warn |] (180 - 1/3 * 20) + (120 - 2/3 * 20)
    br
    span.warn
      |120 + 120 + 120 [Chrome, Firefox, Safari, Edge]
      br
      | 173.3333... + 106.6666... + 80 [IE11]
  +container('flex-shrink-container-basis160-padding40')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & padding 40 & min-width 0
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (80 - 20)
    br
    | (180 - 1/3 * 20) + (120 - 2/3 * 20)
    br
    span.ok 173.3333... + 106.6666... + 80
  +container('flex-shrink-container-basis160-padding40-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & margin 40
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (120-60) #[span.warn |] (180) + (120) + (80 - 20)
    br
    | (180-60) + (120) + (120) #[span.warn |] (180 - 1/3 * 20) + (120 - 2/3 * 20) + (80)
    br
    span.warn
      | 40 + 40 + 40 + (margin 240) [Chrome, Firefox, Safari, Edge]
      br
      | 93.3333... + 26.6666... + 0 + (margin 240) [IE11]
  +container('flex-shrink-container-basis160-margin40')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & margin 40 & min-width 0
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (80 - 20)
    br
    | (180 - 1/3 * 20) + (120 - 2/3 * 20) + (80)
    br
    span.ok 93.3333... + 26.6666... + 0 + (margin 240)
  +container('flex-shrink-container-basis160-margin40-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & padding 50
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (140-20) + (140-90) #[span.warn |] (190) + (120) + (100 - 50)
    br
    | (190-110) + (140) + (140) #[span.warn |] (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    span.warn
      | 140 + 140 + 140 [Chrome, Firefox, Safari, Edge] | 
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.warn 160 + 100 + 100 [IE11]
  +container('flex-shrink-container-basis160-padding50')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & padding 50 & min-width 0
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (120) + (100 - 50)
    br
    | (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.ok 160 + 100 + 100
  +container('flex-shrink-container-basis160-padding50-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & margin 50
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (140-20) + (140-90) #[span.warn |] (190) + (120) + (100-50)
    br
    | (190 - 110) + (140) + (140) #[span.warn |] (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    span.warn
      | 40 + 40 + 40 + (marign 240)[Chrome, Firefox, Safari, Edge] | 
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.warn
      | 60 + 0 + 0 + (margin 300) [IE11]
  +container('flex-shrink-container-basis160-margin50')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & margin 50 & min-width 0
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (120) + (100-50)
    br
    | (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.ok 60 + 0 + 0 + (margin 300)
  +container('flex-shrink-container-basis160-margin50-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & padding 70 & border-box
    br
    span.warn
      | 140 + 140 + 140 [IE11]
      br
      | 180 + 180 + 180 [Chrome, Firefox, Safari, Edge]
  +container('flex-shrink-container-basis160-padding70-borderbox')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & padding 70 & border-box & min-width 0
    br
    span.ok 140 + 140 + 140
  +container('flex-shrink-container-basis160-padding70-borderbox-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 160 & padding 20
    br
    | 360 - (200 + 200 + 200) = -240
    br
    | (200 - 1/6 * 240) + (200 - 2/6 * 240) + (200 - 3/6 * 240)
    br
    span.ok
      | 160 + 120 + 80
  +container('flex-shrink-container-width160-padding20')
  span.desc
    | flex-shrink 1:2:3 & width 160 & margin 20
    br
    | 360 - (200 + 200 + 200) = -240
    br
    | (200 - 1/6 * 240) + (200 - 2/6 * 240) + (200 - 3/6 * 240)
    br
    span.ok
      | 120 + 80 + 40 + (margin 120)
  +container('flex-shrink-container-width160-margin20')
  span.desc
    | flex-shrink 1:2:3 & width 160 & padding 40
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (120-60) #[span.warn |] (180) + (120) + (80 - 20)
    br
    | (180-60) + (120) + (120) #[span.warn |] (180 - 1/3 * 20) + (120 - 2/3 * 20)
    br
    span.warn
      |120 + 120 + 120 [Chrome, Firefox, Safari, Edge]
      br
      | 173.3333... + 106.6666... + 80 [IE11]
  +container('flex-shrink-container-width160-padding40')
  span.desc
    | flex-shrink 1:2:3 & width 160 & padding 40 & min-width 0
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (80 - 20)
    br
    | (180 - 1/3 * 20) + (120 - 2/3 * 20)
    br
    span.ok 173.3333... + 106.6666... + 80
  +container('flex-shrink-container-width160-padding40-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 160 & margin 40
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (120-60) #[span.warn |] (180) + (120) + (80 - 20)
    br
    | (180-60) + (120) + (120) #[span.warn |] (180 - 1/3 * 20) + (120 - 2/3 * 20) + (80)
    br
    span.warn
      | 40 + 40 + 40 + (margin 240) [Chrome, Firefox, Safari, Edge]
      br
      | 93.3333... + 26.6666... + 0 + (margin 240) [IE11]
  +container('flex-shrink-container-width160-margin40')
  span.desc
    | flex-shrink 1:2:3 & width 160 & margin 40 & min-width 0
    br
    | 360 - (240 + 240 + 240) = -360
    br
    | (240 - 1/6 * 360) + (240 - 2/6 * 360) + (240 - 3/6 * 360)
    br
    | (180) + (120) + (60)
    br
    | (180) + (120) + (80 - 20)
    br
    | (180 - 1/3 * 20) + (120 - 2/3 * 20) + (80)
    br
    span.ok 93.3333... + 26.6666... + 0 + (margin 240)
  +container('flex-shrink-container-width160-margin40-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 160 & padding 50
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (140-20) + (140-90) #[span.warn |] (190) + (120) + (100 - 50)
    br
    | (190-110) + (140) + (140) #[span.warn |] (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    span.warn
      | 140 + 140 + 140 [Chrome, Firefox, Safari, Edge] | 
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.warn 160 + 100 + 100 [IE11]
  +container('flex-shrink-container-width160-padding50')
  span.desc
    | flex-shrink 1:2:3 & width 160 & padding 50 & min-width 0
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (120) + (100 - 50)
    br
    | (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.ok 160 + 100 + 100
  +container('flex-shrink-container-width160-padding50-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 160 & margin 50
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (140-20) + (140-90) #[span.warn |] (190) + (120) + (100-50)
    br
    | (190 - 110) + (140) + (140) #[span.warn |] (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    span.warn
      | 40 + 40 + 40 + (marign 240)[Chrome, Firefox, Safari, Edge] | 
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.warn
      | 60 + 0 + 0 + (margin 300) [IE11]
  +container('flex-shrink-container-width160-margin50')
  span.desc
    | flex-shrink 1:2:3 & width 160 & margin 50 & min-width 0
    br
    | 360 - (260 + 260 + 260) = -420
    br
    | (260 - 1/6 * 420) + (260 - 2/6 * 420) + (260 - 3/6 * 420)
    br
    | (190) + (120) + (50)
    br
    | (190) + (120) + (100-50)
    br
    | (190 - 1/3 * 50) + (120 - 2/3 * 50) + (100)
    br
    | (173.3333...) + (86.6666...) + (100)
    br
    | (173.3333...) + (100 - 13.3333...) + (100)
    br
    span.ok 60 + 0 + 0 + (margin 300)
  +container('flex-shrink-container-width160-margin50-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 160 & padding 70 & border-box
    br
    span.warn
      | 140 + 140 + 140 [IE11]
      br
      | 180 + 180 + 180 [Chrome, Firefox, Safari, Edge]
  +container('flex-shrink-container-width160-padding70-borderbox')
  span.desc
    | flex-shrink 1:2:3 & width 160 & padding 70 & border-box & min-width 0
    br
    span.ok 140 + 140 + 140
  +container('flex-shrink-container-width160-padding70-borderbox-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & basis 0
    br
    span.warn
      | 0 + 0 + 0 [IE11]
    br
    | (40-40) + (40-40) + (40-40)
    br
    span.warn
      | 40 + 40 + 40 [Chrome, Firefox, Safari, Edge]
  +container('flex-shrink-container-basis0')
  span.desc
    | flex-shrink 1:2:3 & width 0
    br
    span.ok
      | 0 + 0 + 0
  +container('flex-shrink-container-width0')
  span.desc
    | flex-shrink 1:2:3 & basis 0 & content 160
    br
    span.warn
      | 160 + 160 + 160 [Chrome, Firefox, Safari, Edge]
      br
      | 0 + 0 + 0 [IE11]
  +container('flex-shrink-container-basis0-content160')
  span.desc
    | flex-shrink 1:2:3 & width 0 & content 160
    br
    span.ok 0 + 0 + 0
  +container('flex-shrink-container-width0-content160')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & content 160
    br
    span.warn 160 + 160 + 160 [Chrome, Firefox, Safari, Edge]
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.warn 140 + 120 + 100 [IE11]
  +container('flex-shrink-container-basis160-content160')
  span.desc
    | flex-shrink 1:2:3 & basis 160 & content 160 & min-width 0
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.ok 140 + 120 + 100
  +container('flex-shrink-container-basis160-content160-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 160 & content 160
    br
    span.warn 160 + 160 + 160 [Chrome, Firefox, Safari, Edge]
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.warn 140 + 120 + 100 [IE11]
  +container('flex-shrink-container-width160-content160')
  span.desc
    | flex-shrink 1:2:3 & width 160 & content 160 & min-width 0
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.ok 140 + 120 + 100
  +container('flex-shrink-container-width160-content160-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & width 0 & padding 40
    br
    span.ok
      | 80 + 80 + 80
  +container('flex-shrink-container-width0-padding40')
  span.desc
    | flex-shrink 1:2:3 & width 0 & margin 40
    br
    span.ok
      | 0 + 0 + 0 + (margin 240)
  +container('flex-shrink-container-width0-margin40')
  span.desc
    | flex-shrink 1:2:3 & width 0 & padding 60
    br
    span.ok
      | 120 + 120 + 120
  +container('flex-shrink-container-width0-padding60')
  span.desc
    | flex-shrink 1:2:3 & width 0 & margin 60
    br
    span.ok
      | 0 + 0 + 0 + (margin 360)
  +container('flex-shrink-container-width0-margin60')
  span.desc
    | flex-shrink 1:2:3 & width 0 & padding 70
    br
    span.ok
      | 140 + 140 + 140
  +container('flex-shrink-container-width0-padding70')
  span.desc
    | flex-shrink 1:2:3 & width 0 & margin 70
    br
    span.ok
      | 0 + 0 + 0 + (margin 420)
  +container('flex-shrink-container-width0-margin70')
  span.desc
    | flex-grow 1:2:3 & basis content
    br
    span.warn 40 + 40 + 40 [Chrome, Firefox, Safari, IE11]
    br
    | 360 - (40 + 40 + 40) = 240
    br
    | (40 + 1/6 * 240) + (40 + 2/6 * 240) + (40 + 3/6 * 240)
    br
    span.warn 80 + 120 + 160 [Edge]
  +container('flex-grow-container-basiscontent')
  span.desc
    | flex-grow 1:2:3 & basis content:content:auto
    br
    | 360 - (40 + 40 + 40) = 240
    br
    | (40 + 0 * 240) + (40 + 0 * 240) + (40 + 1 * 240) #[span.warn |] (40 + 1/6 * 240) + (40 + 2/6 * 240) + (40 + 3/6 * 240)
    br
    span.warn
      | 40 + 40 + 280 [Chrome, Firefox, Safari, IE11]
      br
      | 80 + 120 + 160 [Edge]
  +container('flex-grow-container-basiscontent_content_auto')
  span.desc
    | flex-grow 1:2:3 (longhand) & basis content
    br
    | 360 - (40 + 40 + 40) = 240
    br
    | (40 + 1/6 * 240) + (40 + 2/6 * 240) + (40 + 3/6 * 240)
    br
    span.ok 80 + 120 + 160
  +container('flex-growlonghand-container-basiscontent')
  span.desc
    | flex-shrink 1:2:3 & basis content & content 160
    br
    span.warn 160 + 160 + 160 [Chrome, Firefox, Safari, Edge]
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/3 * 120) + (160 - 1/3 * 120) + (160 - 1/3 * 120)
    br
    span.warn 120 + 120 + 120 [IE11]
  +container('flex-shrink-container-basiscontent-content160')
  span.desc
    | flex-shrink 1:2:3 & basis content & content 160 & min-width 0
    br
    span.warn 160 + 160 + 160 [IE11]
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/3 * 120) + (160 - 1/3 * 120) + (160 - 1/3 * 120) #[span.warn |] (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.warn
      | 120 + 120 + 120 [Chrome, Firefox, Safari]
      br
      | 140 + 120 +100 [Edge]
  +container('flex-shrink-container-basiscontent-content160-minwidth0')
  span.desc
    | flex-shrink 1:2:3 & basis content:content:auto & content 160 & min-width 0
    br
    span.warn 160 + 160 + 160 [IE11]
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/5 * 120) + (160 - 1/5 * 120) + (160 - 3/5 * 120) #[span.warn |] (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.warn
      | 136 + 136 + 88 [Chrome, Firefox, Safari]
      br
      | 140 + 120 +100 [Edge]
  +container('flex-shrink-container-basiscontent_content_auto-content160-minwidth0')
  span.desc
    | flex-shrink 1:2:3 (longhand) & basis content & content 160 & min-width 0
    br
    span.warn 160 + 160 + 160 [IE11]
    br
    | 360 - (160 + 160 + 160) = -120
    br
    | (160 - 1/6 * 120) + (160 - 2/6 * 120) + (160 - 3/6 * 120)
    br
    span.warn 140 + 120 + 100 [Chrome, Firefox, Safari, Edge]
  +container('flex-shrinklonghand-container-basiscontent-content160-minwidth0')
!

CSS 

              
                html
  box-sizing border-box
  overflow auto

*
  position relative
  box-sizing inherit

body
  display flex
  align-items center
  justify-content center
  background-color #f8f8f8
  .wrapper
    flex 0 0 auto
    width 360px
    height auto
    display flex
    flex-flow column nowrap
    align-items center
    justify-content center
    padding 20px 0 0
    box-shadow 0 0 15px rgba(black, .16)
    .desc
      width 100%
      height auto
      color #222
      text-align center
      font-size 10px
      white-space nowrap
      background-color rgba(#FDF6E3,.8)
      .warn
        color #d33
        font-weight bold
      .ok
        color #2a3
        font-weight bold
    .measure
      position absolute
      top 0
      left 0
      display flex
      width 360px
      height 100%
      .unit
        width auto
        height 100%
        flex 0 0 10px
        &:nth-child(odd)
          background-color #d0ead0
        &:nth-child(even)
          background-color #f1fbe1
    .container
      width 360px
      height auto
      margin 10px 0 40px
      text-align center
      border-top 1px rgba(black, .3) solid
      border-bottom @border-top
      .item
        box-sizing content-box
        &.border-box
          box-sizing border-box
        &.foo
          background-color rgba(#2299ab,.7)
          .item-width
            background-color blend(rgba(#11779a, .7),#222)
        &.bar
          background-color rgba(#6ca233,.7)
          .item-width
            background-color blend(rgba(#239022, .7),#222)
        &.baz
          background-color rgba(#ffcc2c,.7)
          .item-width
            background-color blend(rgba(#ff9911, .7),#222)
        .item-width,
        .text
          font-size 10px
          display inline-block
        .item-width
          width auto
          height auto
          position absolute
          top 0
          left 0
          color #FDF6E3
          padding 0 5px
        .text
          width 40px
          height auto
          color #222
          background-color #FDF6E3
    .block-container
      display block
      .block-item
        float left
        padding 20px 0
        &.foo
          width 60px
          height auto
        &.bar
          width 120px
          height auto
        &.baz
          width 180px
          height auto
    .flex-grow-container-widthauto
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-widthauto-padding20
      display flex
      .flex-item
        width auto
        height auto
        padding 20px
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-widthauto-margin20
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        margin 0 20px
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-basis0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 1 0 0px
        &.bar
          flex 2 0 0px
        &.baz
          flex 3 0 0px
    .flex-grow-container-basis0-1_5_6
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 1 0 0px
        &.bar
          flex 5 0 0px
        &.baz
          flex 6 0 0px
    .flex-grow-container-basis0-content80
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        .text
          width 80px
          height auto
        &.foo
          flex 1 0 0px
        &.bar
          flex 2 0 0px
        &.baz
          flex 3 0 0px
    .flex-grow-container-basis0-content120
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        .text
          width 120px
          height auto
        &.foo
          flex 1 0 0px
        &.bar
          flex 2 0 0px
        &.baz
          flex 3 0 0px
    .flex-grow-container-basis0-content160
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        .text
          width 160px
          height auto
        &.foo
          flex 1 0 0px
        &.bar
          flex 2 0 0px
        &.baz
          flex 3 0 0px
    .flex-grow-container-width0
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-width-1_5_6
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        &.foo
          flex 1 0 auto
        &.bar
          flex 5 0 auto
        &.baz
          flex 6 0 auto
    .flex-grow-container-width0-content80
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        .text
          width 80px
          height auto
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-width0-content120
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        .text
          width 120px
          height auto
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-width0-content160
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        .text
          width 160px
          height auto
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-width0-padding20
      display flex
      .flex-item
        width 0
        height auto
        padding 20px
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .flex-grow-container-width0-margin20
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        margin 0 20px
        &.foo
          flex 1 0 auto
        &.bar
          flex 2 0 auto
        &.baz
          flex 3 0 auto
    .block-container-120
      display block
      .block-item
        float left
        padding 20px 0
        &.foo
          width 120px
          height auto
        &.bar
          width 120px
          height auto
        &.baz
          width 120px
          height auto
    .flex-shrink-container-basis160
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis200
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 0 1 200px
        &.bar
          flex 0 2 200px
        &.baz
          flex 0 3 200px
    .flex-shrink-container-basis360
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 0 1 360px
        &.bar
          flex 0 2 360px
        &.baz
          flex 0 3 360px
    .flex-shrink-container-basis360-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        min-width 0
        &.foo
          flex 0 1 360px
        &.bar
          flex 0 2 360px
        &.baz
          flex 0 3 360px
    .flex-shrink-container-width160
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width200
      display flex
      .flex-item
        width 200px
        height auto
        padding 20px 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width360
      display flex
      .flex-item
        width 360px
        height auto
        padding 20px 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width360-minwidth0
      display flex
      .flex-item
        width 360px
        height auto
        padding 20px 0
        min-width 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-basis160-padding20
      display flex
      .flex-item
        width auto
        height auto
        padding 20px
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-margin20
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        margin 0 20px
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-padding40
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 40px
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-padding40-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 40px
        min-width 0
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-margin40
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        margin 0 40px
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-margin40-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        margin 0 40px
        min-width 0
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-padding50
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 50px
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-padding50-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 50px
        min-width 0
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-margin50
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        margin 0 50px
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-margin50-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        margin 0 50px
        min-width 0
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-padding70-borderbox
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 70px
        box-sizing content-box
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-padding70-borderbox-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 70px
        box-sizing content-box
        min-width 0
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-width160-padding20
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-margin20
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        margin 0 20px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-padding40
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 40px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-padding40-minwidth0
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 40px
        min-width 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-margin40
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        margin 0 40px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-margin40-minwidth0
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        margin 0 40px
        min-width 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-padding50
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 50px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-padding50-minwidth0
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 50px
        min-width 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-margin50
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        margin 0 50px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-margin50-minwidth0
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        margin 0 50px
        min-width 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-padding70-borderbox
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 70px
        box-sizing content-box
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-padding70-borderbox-minwidth0
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 70px
        box-sizing content-box
        min-width 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-basis0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 0 1 0px
        &.bar
          flex 0 2 0px
        &.baz
          flex 0 3 0px
    .flex-shrink-container-width0
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-basis0-content160
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        .text
          width 160px
          height auto
        &.foo
          flex 0 1 0px
        &.bar
          flex 0 2 0px
        &.baz
          flex 0 3 0px
    .flex-shrink-container-width0-content160
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        .text
          width 160px
          height auto
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-basis160-content160
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        .text
          width 160px
          height auto
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-basis160-content160-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        min-width 0
        .text
          width 160px
          height auto
        &.foo
          flex 0 1 160px
        &.bar
          flex 0 2 160px
        &.baz
          flex 0 3 160px
    .flex-shrink-container-width160-content160
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        .text
          width 160px
          height auto
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width160-content160-minwidth0
      display flex
      .flex-item
        width 160px
        height auto
        padding 20px 0
        min-width 0
        .text
          width 160px
          height auto
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width0-padding40
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 40px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width0-margin40
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        margin 0 40px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width0-padding60
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 60px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width0-margin60
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        margin 0 60px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width0-padding70
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 70px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-shrink-container-width0-margin70
      display flex
      .flex-item
        width 0
        height auto
        padding 20px 0
        margin 0 70px
        &.foo
          flex 0 1 auto
        &.bar
          flex 0 2 auto
        &.baz
          flex 0 3 auto
    .flex-grow-container-basiscontent
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 1 0 content
        &.bar
          flex 2 0 content
        &.baz
          flex 3 0 content
    .flex-grow-container-basiscontent_content_auto
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 1 0 content
        &.bar
          flex 2 0 content
        &.baz
          flex 3 0 auto
    .flex-growlonghand-container-basiscontent
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex-grow 1
          flex 1 0 content
        &.bar
          flex-grow 2
          flex 2 0 content
        &.baz
          flex-grow 3
          flex 3 0 content
    .flex-shrink-container-basiscontent-content160
      display flex
      .flex-item
        width auto
        height auto
        padding 20px 0
        &.foo
          flex 0 1 content
          .text
            width 160px
            height auto
        &.bar
          flex 0 2 content
          .text
            width 160px
            height auto
        &.baz
          flex 0 3 content
          .text
            width 160px
            height auto
    .flex-shrink-container-basiscontent-content160-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        min-width 0
        padding 20px 0
        &.foo
          flex 0 1 content
          .text
            width 160px
            height auto
        &.bar
          flex 0 2 content
          .text
            width 160px
            height auto
        &.baz
          flex 0 3 content
          .text
            width 160px
            height auto
    .flex-shrink-container-basiscontent_content_auto-content160-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        min-width 0
        padding 20px 0
        &.foo
          flex 0 1 content
          .text
            width 160px
            height auto
        &.bar
          flex 0 2 content
          .text
            width 160px
            height auto
        &.baz
          flex 0 3 auto
          .text
            width 160px
            height auto
    .flex-shrinklonghand-container-basiscontent-content160-minwidth0
      display flex
      .flex-item
        width auto
        height auto
        min-width 0
        padding 20px 0
        &.foo
          flex-shrink 1
          flex 0 1 content
          .text
            width 160px
            height auto
        &.bar
          flex-shrink 2
          flex 0 2 content
          .text
            width 160px
            height auto
        &.baz
          flex-shrink 3
          flex 0 3 content
          .text
            width 160px
            height auto
!

JS 

              
                [].slice.call(document.querySelectorAll('.item'), 0)
  .map(item => [item.querySelector('.item-width'), item])
  .forEach(([l, w]) => detectWidth(l, w));

[].forEach.call(document.querySelectorAll('.text'), text => detectWidth(text, text));

function detectWidth(labelEle, widthEle) {
  labelEle.textContent = widthEle.getBoundingClientRect().width;
}
!
999px

Console