The provided error does not exist (any longer)

[danieldegroot2]

https://jigsaw.w3.org/css-validator/validator?uri=https%3A%2F%2Fdonate.openstreetmap.org%2F

returns

388: dotted\8 is not a outline-color value : thin dotted\8

Navigating to the css file https://donate.openstreetmap.org/base.css yields no occurences of outline-color. The only occurence of thin dotted\8 is with outline.

I think either the validator is using an outdated source, or reading the file incorrectly.

(Source file: https://github.com/osmfoundation/donation-drive/blob/master/base.css )

[sideshowbarker]

It seems like the solution is to remove the \8 from wherever you have dotted\8 in the stylesheet.

That error isn’t about the outline-color property but instead about the outline-color value for the outline property:

• https://developer.mozilla.org/en-US/docs/Web/CSS/outline#outline-color
• https://w3c.github.io/csswg-drafts/css-ui-4/#outline
• https://w3c.github.io/csswg-drafts/css-ui-4/#propdef-outline-color

So, apparently what’s happening is that because of the \8, the CSS checker doesn’t recognize that dotted\8 as an outline style — which would instead just be dotted — and so it next tries to interpret it as a color. But there’s no color named dotted\8 either, so the checker stops right there and reports the error cited in the issue description.

For the error to be more clear about what the problem is, it might be better if it instead said:

dotted\8 is not a outline-color value, nor an outline-style value, nor an outline-width value

But even as it’s currently worded, it’s still pointing out exactly where the problem is — which is that dotted\8 value.