Setting flex: 'none'; becomes...
  flex-basis: 'auto'
  flex-grow: '0'
  flex-shrink: '0'
  flex: '0 0 auto'
  e.style.length: 3
  > [0] flex-grow
  > [1] flex-shrink
  > [2] flex-basis

Setting flex: 'auto 1 2'; becomes...
  flex-basis: 'auto'
  flex-grow: '1'
  flex-shrink: '2'
  flex: '1 2 auto'
  e.style.length: 3
  > [0] flex-grow
  > [1] flex-shrink
  > [2] flex-basis

Setting flex: ''; becomes...
  flex-basis: ''
  flex-grow: ''
  flex-shrink: ''
  flex: ''
  e.style.length: 0

Setting border: '1px solid red'; becomes...
  border-width: '1px'
  border-style: 'solid'
  border-color: 'red'
  border: '1px solid red'
  e.style.length: 12
  > [0] border-top-width
  > [1] border-right-width
  > [2] border-bottom-width
  > [3] border-left-width
  > [4] border-top-style
  > [5] border-right-style
  > [6] border-bottom-style
  > [7] border-left-style
  > [8] border-top-color
  > [9] border-right-color
  > [10] border-bottom-color
  > [11] border-left-color