[css-position] computed value of inset properties should not be auto in static positioning if another value was specified

[Loirooriol]

According to https://drafts.csswg.org/cssom/#resolved-value-special-case-property-like-top

If the property applies to a positioned element [...]. Otherwise the resolved value is the computed value.

An element with position: static is not positioned, so the resolved value is the computed value.

According to https://drafts.csswg.org/css-position-3/#box-offsets-trbl,

Computed value: For position: static, auto.

So I would expect this:

element.style.top = "10px";
getComputedStyle(element).top; // "auto"

However, all Firefox, Chromium and WebKit return "10px" instead.

Either CSSOM or CSS Position is wrong.

[emilio]

The computed value of top in that case is 10px, I think this is not a bug. The value is not used, but I think this is invalid and both specs are right.

[emilio]

(Please reopen if I got that wrong)

[Loirooriol]

The computed value of top in that case is 10px

This seems good to me but CSS Position says it computes to auto.

I can't reopen.

[emilio]

Oh, right. I think this is a bug in css-position then.

[fantasai]

CSS2 says 10px, and it wins against css-position in any arguments, so just need to update the spec: https://www.w3.org/TR/CSS2/visuren.html#position-props