diff --git a/lightrag_webui/src/index.css b/lightrag_webui/src/index.css
index aa3fa927..02bdecb3 100644
--- a/lightrag_webui/src/index.css
+++ b/lightrag_webui/src/index.css
@@ -121,13 +121,13 @@
       height: 0;
     }
     to {
-      height: var(--radix-accordion-content-height);
+      height: var(--radix-accordion-content-height, auto);
     }
   }
 
   @keyframes accordion-up {
     from {
-      height: var(--radix-accordion-content-height);
+      height: var(--radix-accordion-content-height, auto);
     }
     to {
       height: 0;