diff --git a/after/syntax/css/css-properties-values-api-1.vim b/after/syntax/css/css-properties-values-api-1.vim
new file mode 100644
index 0000000..dd72adc
--- /dev/null
+++ b/after/syntax/css/css-properties-values-api-1.vim
@@ -0,0 +1 @@
+" N/A
diff --git a/after/syntax/html.vim b/after/syntax/html.vim
index 3b53f45..01f21f2 100644
--- a/after/syntax/html.vim
+++ b/after/syntax/html.vim
@@ -22,6 +22,7 @@ syn include @htmlCss syntax/css/css-overflow-3.vim
 syn include @htmlCss syntax/css/css-page-floats-3.vim
 syn include @htmlCss syntax/css/css-paint-api-1.vim
 syn include @htmlCss syntax/css/css-position-3.vim
+syn include @htmlCss syntax/css/css-properties-values-api-1.vim
 syn include @htmlCss syntax/css/css-pseudo-4.vim
 syn include @htmlCss syntax/css/css-regions-1.vim
 syn include @htmlCss syntax/css/css-round-display-1.vim