[NETBEANS-4687] Support all global CSS3 values

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 12.0
• Fix Version/s: 12.2
• Component/s: web - CSS Editor
• Assignee: Matthias Bläsing
• Reporter: Matthias Bläsing
• Created: 05/Aug/20 19:32
• Updated: 05/Feb/21 21:29
• Resolved: 12/Sep/20 17:07

Description

CSS defined three global values: initial, inherit and unset

https://www.w3.org/TR/css-values-3/#common-keywords

The values are valid for the top level of a property, grammar, but not elements of composed properties:

Note: This implies that, in general, combining these keywords with other component values in the same declaration results in an invalid declaration.

Currently some of the property definitions contain initial and inherit values, but this is not complete and unset is completely uncovered. Instead on relying on the individual property definitions, the values should be handled for all property definitions uniformly.

Issue Links

• is duplicated by: NETBEANS-3526 CSS: initial keyword underlined as invalid for certain properties