1.10.1

https://www.w3.org/TR/2022/WD-css-text-decor-4-20220504/

after/syntax/css/conditional-5.vim

@@ -0,0 +1 @@
+syn match cssFontDescriptor "@\(when\|else\)\>" nextgroup=cssFontDescriptorBlock skipwhite skipnl

after/syntax/css/overflow-3.vim

@@ -1,5 +1,6 @@
 syn keyword cssFontProp contained continue
 syn match cssFontProp contained "\<overflow-\(clip-margin\|block\|inline\)\>"
+syn match cssFontProp contained "\<scrollbar-gutter\>"
 syn match cssFontProp contained "\<block-ellipsis\>"
 syn match cssFontProp contained "\<line-clamp\>"
 syn match cssFontProp contained "\<max-lines\>"

after/syntax/css/overflow-4.vim

@@ -1,3 +1,2 @@
-syn match cssFontProp contained "\<scrollbar-gutter\>"
 syn keyword cssFontAttr contained stable force overflow paginate fragments
 syn region cssPseudoClassLang matchgroup=cssPseudoClassId start=":\(nth-fragment\)(" end=")" oneline

after/syntax/css/ruby-1.vim

@@ -1,3 +1,4 @@
 syn match cssFontProp contained "\<ruby-\(position\|merge\|align\|overhang\)"
+syn keyword cssFontAttr contained merge
 syn match cssFontAttr contained "\<ruby-\(base\|text\)-container\>"
 syn match cssFontAttr contained "\<inter-character\>"

after/syntax/css/selectors-4.vim

@@ -1,10 +1,12 @@
 syn match cssSelectorOp "[|]"
-syn keyword cssPseudoClassId contained scope current past future default valid required optional blank playing paused
+syn keyword cssPseudoClassId contained scope current past future default valid required optional blank playing paused defined modal fullscreen seeking buffering stalled muted autofill
 syn match cssPseudoClassId contained "\<\(any\|local\)-link\>"
 syn match cssPseudoClassId contained "\<read-\(only\|write\)\>"
 syn match cssPseudoClassId contained "\<placeholder-shown\>"
 syn match cssPseudoClassId contained "\<\(in\|out-of\)-range\>"
-syn match cssPseudoClassId contained "\<user-invalid\>"
+syn match cssPseudoClassId contained "\<user-\(invalid\|valid\)\>"
 syn match cssPseudoClassId contained "\<target-within\>"
 syn match cssPseudoClassId contained "\<focus-\(within\|visible\)\>"
+syn match cssPseudoClassId contained "\<picture-in-picture\>"
+syn match cssPseudoClassId contained "\<volume-locked\>"
 syn region cssPseudoClassLang matchgroup=cssPseudoClassId start=":\(is\|dir\|local-link\|current\|nth\(-last\)\=-col\|has\|where\)(" end=")" oneline

after/syntax/css/text-4.vim

@@ -3,6 +3,7 @@ syn match cssTextProp contained "\<text-\(wrap\|spacing\|group-align\)\>"
 syn match cssTextProp contained "\<wrap-\(before\|after\|inside\)\>"
 syn match cssTextProp contained "\<hyphenate-\(character\|limit-\(zone\|chars\|lines\|last\)\)\>"
 syn match cssTextProp contained "\<line-padding\>"
+syn match cssTextProp contained "\<word-boundary-\(detection\|expansion\)\>"
 syn keyword cssTextAttr contained spread punctuation
 syn match cssTextAttr contained "\<preserve-\(breaks\|spaces\)\>"
 syn match cssTextAttr contained "\<trim-inner\>"
@@ -14,3 +15,4 @@ syn match cssTextAttr contained "\<\(trim\|space\)-\(start\|end\|adjacent\)\>"
 syn match cssTextAttr contained "\<space-first\>"
 syn match cssTextAttr contained "\<no-compress\>"
 syn match cssTextAttr contained "\<ideograph-\(alpha\|numeric\)\>"
+syn match cssTextAttr contained "\<ideographic-space\>"

after/syntax/css/values-4.vim

@@ -1,3 +1,3 @@
 syn match cssValueLength contained "[-+]\=\d\+\(\.\d*\)\=\(rex\|cap\|rcap\|rch\|ic\|ric\|lh\|rlh\)"
 syn match cssValueLength contained "[-+]\=\d\+\(\.\d*\)\=\(s\|l\|d\)\=v\(h\|w\|i\|b\|min\|max\)"
-syn region cssFunction contained matchgroup=cssFunctionName start="\<\(mix\|min\|max\|clamp\|toggle\|round\|mod\|rem\|a\=\(sin\|cos\|tan\)\|atan2\|pow\|sqrt\|hypot\|log\|exp\|abs\|sign\)\s*(" end=")" oneline keepend
+syn region cssFunction contained matchgroup=cssFunctionName start="\<\(mix\|min\|max\|clamp\|round\|mod\|rem\|a\=\(sin\|cos\|tan\)\|atan2\|pow\|sqrt\|hypot\|log\|exp\|abs\|sign\)\s*(" end=")" oneline keepend

test/test.css

@@ -141,7 +141,19 @@
 }
 
 @supports (selector(.conditional-4)) {
-	display: auto;
+	.conditional-4 {
+		display: auto;
+	}
+}
+
+@when media(screen) {
+	.conditional-5 {
+		display: auto;
+	}
+} @else {
+	.conditional-5 {
+		display: auto;
+	}
 }
 
 .contain-1 {
@@ -155,6 +167,10 @@
 	content-visibility: auto;
 }
 
+.contain-3 {
+	display: auto;
+}
+
 .content-3 {
 	string-set: auto;
 	bookmark-level: auto;
@@ -629,6 +645,7 @@ mask {
 	overflow-clip-margin: auto;
 	overflow-block: auto;
 	overflow-inline: auto;
+	scrollbar-gutter: auto;
 	block-ellipsis: auto;
 	line-clamp: auto;
 	max-lines: auto;
@@ -636,7 +653,6 @@ mask {
 }
 
 .overflow-4::nth-fragment(1) {
-	scrollbar-gutter: auto;
 	display: stable;
 	display: force;
 	display: overflow;
@@ -752,6 +768,7 @@ mask {
 	ruby-overhang: auto;
 	display: ruby-base-container;
 	display: ruby-text-container;
+	display: merge;
 	display: inter-character;
 }
 
@@ -852,7 +869,18 @@ mask {
 .selectors-4:playing,
 .selectors-4:paused,
 .selectors-4:has(> img),
-.selectors-4:where(:not(:hover)) {
+.selectors-4:where(:not(:hover)),
+.selectors-4:defined,
+.selectors-4:modal,
+.selectors-4:fullscreen,
+.selectors-4:picture-in-picture,
+.selectors-4:seeking,
+.selectors-4:buffering,
+.selectors-4:stalled,
+.selectors-4:muted,
+.selectors-4:volume-locked,
+.selectors-4:autofill,
+.selectors-4:user-valid {
 	display: auto;
 }
 
@@ -1057,6 +1085,8 @@ view {
 	text-group-align: auto;
 	line-padding: auto;
 	text-spacing: auto;
+	word-boundary-detection: auto;
+	word-boundary-expansion: auto;
 	display: preserve-breaks;
 	display: preserve-spaces;
 	display: trim-inner;
@@ -1078,6 +1108,7 @@ view {
 	display: ideograph-alpha;
 	display: ideograph-numeric;
 	display: punctuation;
+	display: ideographic-space;
 }
 
 .text-decor-3 {