Valid CSS property "margin-block-start" not recognised from roger morgan on 2019-09-30 (www-validator@w3.org from September 2019)

From: roger morgan <rmorgan954@yahoo.com>
Date: Mon, 30 Sep 2019 09:52:00 +0000 (UTC)
To: "www-validator@w3.org" <www-validator@w3.org>
Message-ID: <153060182.1305987.1569837120909@mail.yahoo.com>

The validator generated the following error message for a document containing the property margin-block-start, which has been in the standard for years and is implemented in all major browsers:



Error: CSS: margin-block-start: Property margin-block-start doesn't exist.

At line 18, column 32

n-block-start: 0; margin-block

Received on Monday, 30 September 2019 16:02:16 UTC