diff --git a/after/syntax/css/image-animation-1.vim b/after/syntax/css/image-animation-1.vim
new file mode 100644
index 0000000..c7aa352
--- /dev/null
+++ b/after/syntax/css/image-animation-1.vim
@@ -0,0 +1,3 @@
+syn keyword cssFontProp contained image-animation
+syn keyword cssFontAttr contained stopped
+syn keyword cssPseudoClassId contained animated-image
diff --git a/test/test.css b/test/test.css
index 6ed7811..9a5c0c8 100644
--- a/test/test.css
+++ b/test/test.css
@@ -683,6 +683,11 @@ template {
   display: auto;
 }
 
+.image-animation-1:animated-image {
+  image-animation: auto;
+  display: stopped;
+}
+
 .images-3 {
   image-orientation: auto;
   display: snap;