W3C home > Mailing lists > Public > www-validator-css@w3.org > March 2015

The "inherit" value not allowed as one of values in a composite property

From: Wirek <wirek@bigfoot.com>
Date: Tue, 17 Mar 2015 21:56:41 +0100
Message-ID: <00a301d060f4$df0f8f50$9790a8c0@wirek>
To: <www-validator-css@w3.org>
There's a bug in the CSS validator. Try to validate this:
        list-style: inherit outside none;

....by direct input on your site (https://jigsaw.w3.org/css-validator/validator.html.en#validate_by_input) with default settings. The star character at the beginning is just in place of a selector which is meaningless to you and this bug report. Each time (profiles: "CSS level 3", "CSS level 2.1" and "CSS level 2") the validator throws an error like this:
    "Sorry! We found the following errors (1)
    URI : TextArea2  *   Value Error : list-style Too many values or values are not recognized :  inherit outside none"

This property is defined as:
        Value:   [ <'list-style-type'> || <'list-style-position'> || <'list-style-image'> ] | inherit

....and each of three component properties allow "inherit" value by themselves and that's the point where the validator goes wrong way. I understand that this:
        list-style: inherit;

....is equivalent to this:
        list-style: inherit inherit inherit;

....or at least it should be. Just to pass the validation test I have to change my style sheets like this:
        list-style: disc outside none;
        list-style-type: inherit;

....and repeat myself and make my CSS files bigger than they should be. With "Warnings:" list box value changed from default one to "All" value I then get the warning like this:
    Warnings (1)
    URI : TextArea
    3  *  Redefinition of list-style-type

I've checked few other CSS 2.1 composite properties (e.g. "border") which allow "inherit" value by themselves as well as by their component properties (e.g. "border-width") and they all failed the validation test because of the bug. I bet all the properties (from top to bottom of the list) would fail it as well.
Let me know when this is fixed, please.

        Kind regards,
Received on Wednesday, 18 March 2015 09:08:13 UTC

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