diff --git a/index.html b/index.html
index 3efb188..cf23409 100644
--- a/index.html
+++ b/index.html
@@ -125,6 +125,13 @@
         .dark-mode a {
             color: #88e3ff;
         }
+        .dark-mode .modal-content {
+            background-color: #333;
+            color: #fff;
+        }
+        .dark-mode .btn-close {
+            background-image: url('data:image/svg+xml,%3csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="%23FFF"%3e%3cpath d="M.293.293a1 1 0 0 1 1.414 0L8 6.586 14.293.293a1 1 0 1 1 1.414 1.414L9.414 8l6.293 6.293a1 1 0 0 1-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 0 1-1.414-1.414L6.586 8 .293 1.707a1 1 0 0 1 0-1.414z"/%3e%3c/svg%3e');
+        }        
         .dark-mode .btn-primary {
             color: #ffffff;
         }