diff --git a/after/syntax/css/css3-transforms.vim b/after/syntax/css/css3-transforms.vim
index 8a4b68a..e7642ac 100644
--- a/after/syntax/css/css3-transforms.vim
+++ b/after/syntax/css/css3-transforms.vim
@@ -2,4 +2,6 @@
 syn match cssFontProp contained "\<backface-visibility\>"
 syn match cssFontProp contained "\<perspective\(-origin\)\=\>"
 syn match cssFontProp contained "\<transform\(-\(origin\|style\)\)\=\>"
+syn keyword cssFontAttr contained flat
+syn match cssFontAttr contained "\<preserve-3d\>"
 syn region cssFunction contained matchgroup=cssFunctionName start="\<\(matrix\(3d\)\=\|translate\(3d\|X\|Y\|Z\)\=\|scale\(3d\|X\|Y\|Z\)\=\|rotate\(3d\|X\|Y\|Z\)\=\|skew\(X\|Y\)\=\|perspective\)\s*(" end=")" oneline keepend