diff --git a/PowerEditor/installer/APIs/css.xml b/PowerEditor/installer/APIs/css.xml
index d3da9cfd3..e24cfd8fb 100644
--- a/PowerEditor/installer/APIs/css.xml
+++ b/PowerEditor/installer/APIs/css.xml
@@ -22,9 +22,29 @@
 		<KeyWord name="@page" />
 		<KeyWord name="above" />
 		<KeyWord name="absolute" />
+		<KeyWord name="accent-color" />
 		<KeyWord name="ActiveBorder" />
 		<KeyWord name="ActiveCaption" />
+		<KeyWord name="additive-symbols" />
 		<KeyWord name="always" />
+		<KeyWord name="align-content" />
+		<KeyWord name="align-items" />
+		<KeyWord name="align-self" />
+		<KeyWord name="all" />
+		<KeyWord name="animation" />
+		<KeyWord name="animation-delay" />
+		<KeyWord name="animation-delay-end" />
+		<KeyWord name="animation-delay-start" />
+		<KeyWord name="animation-direction" />
+		<KeyWord name="animation-duration" />
+		<KeyWord name="animation-fill-mode" />
+		<KeyWord name="animation-iteration-count" />
+		<KeyWord name="animation-name" />
+		<KeyWord name="animation-play-state" />
+		<KeyWord name="animation-range" />
+		<KeyWord name="animation-range-end" />
+		<KeyWord name="animation-range-start" />
+		<KeyWord name="animation-timing-function" />
 		<KeyWord name="AppWorkspace" />
 		<KeyWord name="aqua" />
 		<KeyWord name="armenian" />
@@ -33,6 +53,8 @@
 		<KeyWord name="avoid" />
 		<KeyWord name="azimuth" />
 		<KeyWord name="background" />
+		<KeyWord name="backdrop-filter" />
+		<KeyWord name="backface-visibility" />
 		<KeyWord name="background-attachment" />
 		<KeyWord name="background-blend-mode" />
 		<KeyWord name="background-clip" />
@@ -155,6 +177,10 @@
 		<KeyWord name="column-span" />
 		<KeyWord name="column-width" />
 		<KeyWord name="columns" />
+		<KeyWord name="contain" />
+		<KeyWord name="container" />
+		<KeyWord name="container-name" />
+		<KeyWord name="container-type" />
 		<KeyWord name="compact" />
 		<KeyWord name="condensed" />
 		<KeyWord name="content" />
@@ -181,30 +207,80 @@
 		<KeyWord name="em" />
 		<KeyWord name="embed" />
 		<KeyWord name="empty-cells" />
+		<KeyWord name="enable-background" />
 		<KeyWord name="ex" />
 		<KeyWord name="expanded" />
 		<KeyWord name="extra-condensed" />
 		<KeyWord name="extra-expanded" />
+		<KeyWord name="fallback" />
 		<KeyWord name="far-left" />
 		<KeyWord name="far-right" />
 		<KeyWord name="fast" />
 		<KeyWord name="faster" />
+		<KeyWord name="fill" />
+		<KeyWord name="fill-opacity" />
+		<KeyWord name="fill-rule" />
+		<KeyWord name="filter" />
 		<KeyWord name="fixed" />
+		<KeyWord name="flex" />
+		<KeyWord name="flex-basis" />
+		<KeyWord name="flex-direction" />
+		<KeyWord name="flex-flow" />
+		<KeyWord name="flex-grow" />
+		<KeyWord name="flex-shrink" />
+		<KeyWord name="flex-wrap" />
 		<KeyWord name="float" />
+		<KeyWord name="flood-color" />
+		<KeyWord name="flood-opacity" />
 		<KeyWord name="font" />
+		<KeyWord name="font-display" />
 		<KeyWord name="font-family" />
+		<KeyWord name="font-feature-settings" />
+		<KeyWord name="font-kerning" />
+		<KeyWord name="font-language-override" />
+		<KeyWord name="font-optical-sizing" />
 		<KeyWord name="font-size" />
 		<KeyWord name="font-size-adjust" />
 		<KeyWord name="font-stretch" />
 		<KeyWord name="font-style" />
+		<KeyWord name="font-synthesis" />
 		<KeyWord name="font-variant" />
+		<KeyWord name="font-variant-alternates" />
+		<KeyWord name="font-variant-caps" />
+		<KeyWord name="font-variant-east-asian" />
+		<KeyWord name="font-variant-ligatures" />
+		<KeyWord name="font-variant-numeric" />
+		<KeyWord name="font-variant-position" />
+		<KeyWord name="font-variation-settings" />
 		<KeyWord name="font-weight" />
 		<KeyWord name="fuchsia" />
+		<KeyWord name="gap" />
 		<KeyWord name="georgian" />
 		<KeyWord name="grad" />
 		<KeyWord name="gray" />
 		<KeyWord name="GrayText" />
 		<KeyWord name="green" />
+		<KeyWord name="glyph-orientation-horizontal" />
+		<KeyWord name="glyph-orientation-vertical" />
+		<KeyWord name="grid" />
+		<KeyWord name="grid-area" />
+		<KeyWord name="grid-auto-columns" />
+		<KeyWord name="grid-auto-flow" />
+		<KeyWord name="grid-auto-rows" />
+		<KeyWord name="grid-column" />
+		<KeyWord name="grid-column-end" />
+		<KeyWord name="grid-column-gap" />
+		<KeyWord name="grid-column-start" />
+		<KeyWord name="grid-gap" />
+		<KeyWord name="grid-row" />
+		<KeyWord name="grid-row-end" />
+		<KeyWord name="grid-row-gap" />
+		<KeyWord name="grid-row-start" />
+		<KeyWord name="grid-template" />
+		<KeyWord name="grid-template-areas" />
+		<KeyWord name="grid-template-columns" />
+		<KeyWord name="grid-template-rows" />
+		<KeyWord name="hanging-punctuation" />
 		<KeyWord name="hebrew" />
 		<KeyWord name="height" />
 		<KeyWord name="help" />
@@ -216,6 +292,7 @@
 		<KeyWord name="HighlightText" />
 		<KeyWord name="hiragana" />
 		<KeyWord name="hiragana-iroha" />
+		<KeyWord name="hyphens" />
 		<KeyWord name="hz" />
 		<KeyWord name="icon" />
 		<KeyWord name="InactiveBorder" />