diff --git a/after/syntax/css/values-4.vim b/after/syntax/css/values-4.vim
new file mode 100644
index 0000000..744dd7a
--- /dev/null
+++ b/after/syntax/css/values-4.vim
@@ -0,0 +1,2 @@
+syn match cssValueLength contained "[-+]\=\d\+\(\.\d*\)\=\(vi\|vb\|ic\|cap\|lh\|rlh\)"
+syn region cssFunction contained matchgroup=cssFunctionName start="\<\(min\|max\|clamp\|toggle\)\s*(" end=")" oneline keepend
diff --git a/test/test.css b/test/test.css
index ba4c57c..62893ee 100644
--- a/test/test.css
+++ b/test/test.css
@@ -1032,6 +1032,19 @@ view {
   display: calc(100%/3 - 2*1em - 2*1px);
 }
 
+.values-4 {
+  display: 1vi;
+  display: 1vb;
+  display: 1ic;
+  display: 1cap;
+  display: 1lh;
+  display: 1rlh;
+  display: min(0, 1);
+  display: max(0, 1);
+  display: clamp(0, 100, 2);
+  display: toggle(italic, normal);
+}
+
 .variables-1 {
   --var-foo: auto;
   display: var(foo);