Chrome Version       : 50.0.2661.11
OS Version: Ubuntu 14.04 LTS
URLs (if applicable) : https://drafts.csswg.org/css-flexbox/#definite-sizes
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari 5: can't easily test
  Firefox 4.x: FAIL  (version 48.0a1)
     IE 7/8/9: can't easily test

What steps will reproduce the problem?
1. Load above URL

What is the expected result?
Top of the screen shows "9.8. Definite and Indefinite Sizes" section

What happens instead of that?
Top of the screen is in the middle of the previous section

Please provide any additional information below. Attach a screenshot if
possible.

UserAgentString: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.11 Safari/537.36