Bug 1842174 Comment 0 Edit History

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The `::first-line` pseudo-element can only be styled by a limited set of properties. Those properties are:

- all font properties
- the color and opacity properties
- all background properties
- any typesetting properties that apply to inline elements
- all text decoration properties
- the `ruby-position` property
- any inline layout properties that apply to inline elements
- any other properties defined to apply to `::first-line` by their respective specifications 

See https://drafts.csswg.org/css-pseudo-4/#first-line-styling and https://developer.mozilla.org/en-US/docs/Web/CSS/::first-line#allowable_properties.

Sebastian
The `::first-line` pseudo-element can only be styled by a limited set of properties. Those properties are:

- all font properties
- the `color` and `opacity` properties
- all background properties
- any typesetting properties that apply to inline elements
- all text decoration properties
- the `ruby-position` property
- any inline layout properties that apply to inline elements
- any other properties defined to apply to `::first-line` by their respective specifications 

See https://drafts.csswg.org/css-pseudo-4/#first-line-styling and https://developer.mozilla.org/en-US/docs/Web/CSS/::first-line#allowable_properties.

Sebastian

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