diff --git a/src/technologies/r.json b/src/technologies/r.json
index ac5d10c57..ff08f4ba0 100644
--- a/src/technologies/r.json
+++ b/src/technologies/r.json
@@ -153,6 +153,26 @@
     "cats": [
       66
     ],
+    "css": [
+      "--radix-accordion-content-height",
+      "--radix-toast-swipe-end-x",
+      "--radix-toast-swipe-move-x",
+      "--radix-navigation-menu-viewport-width",
+      "--radix-navigation-menu-viewport-height",
+      "--radix-select-trigger-width",
+      "--radix-select-trigger-height",
+      "--radix-context-menu-content-transform-origin",
+      "--radix-context-menu-content-available-height",
+      "--radix-dropdown-menu-content-available-height",
+      "--radix-dropdown-menu-content-transform-origin",
+      "--radix-hover-card-content-transform-origin",
+      "--radix-popover-trigger-width",
+      "--radix-popover-content-transform-origin",
+      "--radix-select-trigger-width",
+      "--radix-select-content-available-height",
+      "--radix-select-content-transform-origin",
+      "--radix-tooltip-content-transform-origin"
+    ],
     "description": "Radix UI is a React-based user interface component library that offers accessible, responsive, and customisable components for building web applications.",
     "dom": "a[data-radix-collection-item], button[data-radix-collection-item]",
     "icon": "Radix UI.svg",