[fxtf-drafts] [css-masking] Add mask-position-{x,y}

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== [css-masking] Add mask-position-{x,y} ==
The spec should probably add these two properties and make 
`mask-position` a shorthand of those two.

WebKit and Blink have implemented `-webkit-mask-position-{x,y}`, and 
Gecko is going to ship the unprefixed form `mask-position-{x,y}` in 
Firefox 53.

The syntax should be similiar to `background-position-{x,y}`, so I 
suppose this isn't something very controversial.

Please view or discuss this issue at 
https://github.com/w3c/fxtf-drafts/issues/103 using your GitHub 

Received on Wednesday, 11 January 2017 01:04:31 UTC