diff --git a/src/browser/base/content/zen-styles/zen-animations.css b/src/browser/base/content/zen-styles/zen-animations.css
index 846307b69..4dc7618a7 100644
--- a/src/browser/base/content/zen-styles/zen-animations.css
+++ b/src/browser/base/content/zen-styles/zen-animations.css
@@ -336,6 +336,6 @@
 
   to {
     opacity: 1;
-    transform: translateX(calc(-100% - 2px)) translateY(-50%);
+    transform: translateX(-100%) translateY(-50%);
   }
 }