866540 - CSS properties having a left/right distinction should have start/end equivalences in general

Status: RESOLVED INCOMPLETE

(Core :: CSS Parsing and Computation, enhancement)

Description

[Benedikt Pfeifer]

I think CSS properties that have a distinction of "left" and "right" should have (experimental?) "start" and "end" equivalences in general to allow styling while fully respecting the directionality.

Example:
-moz-border-bottom-start-radius

Comment 1

[John Daggett (:jtd)]

(In reply to Benedikt P. [:Mic] from comment #0)
> I think CSS properties that have a distinction of "left" and "right" should
> have (experimental?) "start" and "end" equivalences in general to allow
> styling while fully respecting the directionality.
> 
> Example:
> -moz-border-bottom-start-radius

If you think *CSS* needs to have additional features, bugzilla isn't the right place for this, you should post your proposal on the CSS mailing list, www-style.  That's used by the CSS Working Group to evaluate proposals/requests like this.

For this specific feature, there has been a *lot* of discussion of logical vs. physical properties and you probably should review those discussions too.  Suffice it to say, it's not a simple request, the property explosion that results from layering logical properties (xxx-start-xxx, xxx-end-xxx) on top of physical ones (xxx-right-xxx, xxx-left-xxx).  But www-style is the right place for that discussion!

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Yeah, this should happen first on the spec side; once that happens it's worth filing bugs to implement.

(Also, border-start-radius doesn't makes sense, since border radii are for corners, not sides.)