From 7cd175db66e4d40e736078c751b1d1d8bb821094 Mon Sep 17 00:00:00 2001
From: Dave Letorey <dave@code-red.uk>
Date: Wed, 19 Aug 2026 15:39:49 +0100
Subject: [PATCH 1/2] Update Overview.bs

Updated the syntax of`alpha()` function to have the `<alpha>` value required
---
 css-color-5/Overview.bs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/css-color-5/Overview.bs b/css-color-5/Overview.bs
index bd35dc9df4c..5381922bb00 100644
--- a/css-color-5/Overview.bs
+++ b/css-color-5/Overview.bs
@@ -1811,8 +1811,7 @@ Relative alpha colors refer to an origin color, and only change the alpha channe
 The grammar of the ''alpha()'' function, new in this level, is as follows:
 
 <pre class='prod'>
-<dfn>alpha()</dfn> = alpha([from <<color>>]
-					[ / [<<alpha-value>> | none] ]? )
+<dfn>alpha()</dfn> = alpha([from <<color>>] / [<<alpha-value>>])
 </pre>
 
 

From cec5e3c2824a972061245d5488c7bff020a223a0 Mon Sep 17 00:00:00 2001
From: Dave Letorey <dave@code-red.uk>
Date: Thu, 20 Aug 2026 10:49:13 +0100
Subject: [PATCH 2/2] Update css-color-5/Overview.bs

Co-authored-by: Keith Cirkel <keithamus@users.noreply.github.com>
---
 css-color-5/Overview.bs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/css-color-5/Overview.bs b/css-color-5/Overview.bs
index 5381922bb00..14a8f6945c7 100644
--- a/css-color-5/Overview.bs
+++ b/css-color-5/Overview.bs
@@ -1811,7 +1811,7 @@ Relative alpha colors refer to an origin color, and only change the alpha channe
 The grammar of the ''alpha()'' function, new in this level, is as follows:
 
 <pre class='prod'>
-<dfn>alpha()</dfn> = alpha([from <<color>>] / [<<alpha-value>>])
+<dfn>alpha()</dfn> = alpha(from <<color>> / [<<alpha-value>> | none])
 </pre>