How we built it

Correct handling of percentages in children of flex items

Certain flex items should be considered to have definite sizes (see spec URL), and therefore if a child element of a flex item uses percentage sizes, they should work.




Established standard

Status in Chromium

Enabled by default (launch bug) in:

  • Chrome for desktop release 51
  • Chrome for Android release 51
  • Android WebView release 51
  • Opera release 38
  • Opera for Android release 38

Consensus & Standardization

  • Shipped
  • Shipped
  • No public signals
  • Strongly positive


Last updated on 2016-03-14