[csswg-drafts] [CSS Grid] grid-{row, column}-gap <percentage> value has no mention of what the percentage refers to.

teoli2003 has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [CSS Grid] grid-{row, column}-gap <percentage> value has no mention
 of what the percentage refers to. ==
In https://drafts.csswg.org/css-grid/#propdef-grid-row-gap , the value
 <percentage> has been recently added.

In the property box, there is still a Percentage: n/a. Nothing in the 
following paragraph too.
It should mention that the percentage refers to the dimension of the 
grid container (If I have understood 
https://lists.w3.org/Archives/Public/www-style/2016Apr/0351.html 
correctly), and the property box should be amended.


Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/175 using your GitHub 
account