diff --git a/after/syntax/css/display-4.vim b/after/syntax/css/display-4.vim
new file mode 100644
index 0000000..43e07f5
--- /dev/null
+++ b/after/syntax/css/display-4.vim
@@ -0,0 +1,2 @@
+syn keyword cssFontProp contained reading-flow
+syn keyword cssFontAttr contained flex-visual flex-flow grid-rows grid-columns
diff --git a/test/test.css b/test/test.css
index de3b448..597704e 100644
--- a/test/test.css
+++ b/test/test.css
@@ -339,6 +339,14 @@
   display: run-in;
 }
 
+.display-4 {
+	reading-flow: auto;
+	display: flex-visual;
+	display: flex-flow;
+	display: grid-rows;
+	display: grid-columns;
+}
+
 .easing-1 {
   display: auto;
 }