diff --git a/src/vs/languages/css/common/buildscripts/css-schema.xml b/src/vs/languages/css/common/buildscripts/css-schema.xml
index 5439e3eaab7f12d696323efb1eaa95fef5a8379d..39fd6aaaeef8f9091e1269daff78bbe075a72591 100644
--- a/src/vs/languages/css/common/buildscripts/css-schema.xml
+++ b/src/vs/languages/css/common/buildscripts/css-schema.xml
@@ -2387,9 +2387,15 @@
Kerning is the contextual adjustment of inter-glyph spacing. This property controls metric kerning, kerning that utilizes adjustment data contained in the font.
-
-
-
+
+ Specifies that kerning is applied at the discretion of the user agent.
+
+
+ Specifies that kerning is not applied.
+
+
+ Specifies that kerning is applied.
+
@@ -2418,7 +2424,7 @@
Preserves the readability of text when font fallback occurs by adjusting the font-size so that the x-height is the same irregardless of the font used.
- Do not preserve the font's x-height.
+ Do not preserve the font’s x-height.
@@ -2446,13 +2452,13 @@
Allows italic or oblique faces to be selected. Italic forms are generally cursive in nature while oblique faces are typically sloped versions of the regular face.
- Selects a font that is labeled 'italic', or, if that is not available, one labeled 'oblique'.
+ Selects a font that is labeled as an 'italic' face, or an 'oblique' face if one is not
Selects a face that is classified as 'normal'.
- Selects a font that is labeled 'oblique'.
+ Selects a font that is labeled as an 'oblique' face, or an 'italic' face if one is not.
@@ -2462,8 +2468,12 @@
Disallow all synthetic faces.
-
-
+
+ Allow synthetic italic faces.
+
+
+ Allow synthetic bold faces.
+
@@ -2489,7 +2499,9 @@
Enables display of historical forms.
-
+
+ None of the features are enabled.
+
Enables replacement of default glyphs with ornaments, if provided in the font.
@@ -2513,7 +2525,9 @@
Enables display of small capitals for both upper and lowercase letters.
-
+
+ None of the features are enabled.
+
Enables display of petite capitals.
@@ -2546,7 +2560,9 @@
Enables rendering of JIS90 forms.
-
+
+ None of the features are enabled.
+
Enables rendering of proportionally-spaced variants.
@@ -2635,9 +2651,15 @@
Specifies the vertical position
-
-
-
+
+ None of the features are enabled.
+
+
+ Enables display of subscript variants (OpenType feature: subs).
+
+
+ Enables display of superscript variants (OpenType feature: sups).
+