diff --git a/docs/docs.css b/docs/docs.css
index 2522539..faadfa4 100644
--- a/docs/docs.css
+++ b/docs/docs.css
@@ -108,9 +108,8 @@ button.focused {
 }
 
 button.active {
-  box-shadow: inset -1px -1px var(--button-highlight),
-    inset 1px 1px var(--window-frame), inset -2px -2px var(--button-face),
-    inset 2px 2px var(--button-shadow);
+  box-shadow: inset -1px -1px #ffffff, inset 1px 1px #0a0a0a,
+    inset -2px -2px #dfdfdf, inset 2px 2px #808080;
 }
 
 @media (max-width: 480px) {