Re: [csswg-drafts] [css-backgrounds][css-logical-props] Consider defining logical values for <angle> from Chris Harvey via GitHub on 2017-04-22 (public-css-archive@w3.org from April 2017)

From: Chris Harvey via GitHub <sysbot+gh@w3.org>
Date: Sat, 22 Apr 2017 02:28:31 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-296341197-1492828109-sysbot+gh@w3.org>

According to [CSS Values and Units Module Level 3](https://www.w3.org/TR/css-values/#angles), an &lt;angle&gt; is always clockwise for positive values and counterclockwise for negative values. Furthermore, the value `0` refers to the *bearing angle* pointing "up" toward the "top" of the screen (equivalently true for `0deg`, `0rad`, `0turn`, and `0grad`).

I think the `logical` keyword should determine the direction of the zero-degree *bearing angle*: rather than "up", it should point to the "block-start" side of the screen. However, I disagree with changing the direction of the angle. I think positive angles should *always* be clockwise, regardless of direction or writing mode.



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Received on Saturday, 22 April 2017 02:28:38 UTC