@layer is not supported with css v3

[shubhraj]

Hi Team,
I am trying to use layers with CSS v3.
while compiling the CSS It's throwing :
Error: undefined:82:3: missing '}' css/lib/parse/index.js:62:15

my sample code :
https://runkit.com/embed/3hk0f1iymtil

[jogibear9988]

I created a pul req for this in the adobe fork: adobe#97