From 1fcc00a11ae701541017b76d8ec8b0398da8bb7f Mon Sep 17 00:00:00 2001
From: Mats Palmgren <mats@mozilla.com>
Date: Thu, 21 May 2020 21:13:10 +0000
Subject: [PATCH] style: Allow 'opacity' on ::first-letter/::first-line
 pseudos.

Differential Revision: https://phabricator.services.mozilla.com/D76387
---
 components/style/properties/data.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/components/style/properties/data.py b/components/style/properties/data.py
index 8e6cdd79a1b6..9ab3a40ca668 100644
--- a/components/style/properties/data.py
+++ b/components/style/properties/data.py
@@ -688,6 +688,7 @@ def spec(data, spec_path):
     def first_letter(data):
         props = set([
             "color",
+            "opacity",
             "float",
             "initial-letter",
 
@@ -722,6 +723,7 @@ def first_line(data):
         props = set([
             # Per spec.
             "color",
+            "opacity",
 
             # Kinda like css-fonts?
             "-moz-osx-font-smoothing",