diff --git a/after/syntax/css/css3-animations.vim b/after/syntax/css/css3-animations.vim
index 84bec4b..24a7515 100644
--- a/after/syntax/css/css3-animations.vim
+++ b/after/syntax/css/css3-animations.vim
@@ -1,3 +1,4 @@
 " TODO: create cssAnimationsProp group and cssAnimationsAttr group
-syn match cssFontProp contained "\<animation\(-\(delay\|direction\|duration\|iteration-count\|name\|play-state\|timing-function\)\)\=\>"
-syn keyword cssFontAttr contained IDENT running paused
+syn match cssFontProp contained "\<animation\(-\(name\|duration\|timing-function\|iteration-count\|direction\|play-state\|delay\|fill-mode\)\)\=\>"
+syn keyword cssFontAttr contained forwards backwards running paused
+syn match cssFontAttr contained "\<alternate-reverse\>"