Re: [fxtf-drafts] [motion-1] The definition of "containing box" for ray() function (#369)

Note that the path can also be defined using `<basic-shape> || <geometry-box>`. `<geometry-box>` is meaningless for a containing block: the containing block is a rectangle, not a box.

We could say that paths refer to the containing block, or the SVG root element for SVG layout, and remove `<geometry-box>` from the syntax.

Alternately, we could say that ray paths refer to the [reference box](https://drafts.csswg.org/css-transforms-1/#reference-box) of the parent element, and `<geometry-box>` similarly refers to a box of the parent element.


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Received on Wednesday, 11 September 2019 06:04:24 UTC