diff --git a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
index 6a618135f..8ef2ab1be 100644
--- a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
+++ b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
@@ -205,6 +205,7 @@
       display: flex;
       flex-direction: column;
       padding-top: calc(var(--zen-toolbox-padding) * 2);
+      align-items: center;
     }
 
     :root:has(&) #zen-sidebar-splitter {