These invalid declarations get discarded very early in the CSS Value Processing process.
When collecting the Declared Values, User-Agents (= spec lingo for browsers) already filter out syntactically invalid declarations.
[
add
]
[
|
|
...
]
These invalid declarations get discarded very early in the CSS Value Processing process.
When collecting the Declared Values, User-Agents (= spec lingo for browsers) already filter out syntactically invalid declarations.