diff --git a/static/style.css b/static/style.css
index eef1c5650..24c288948 100644
--- a/static/style.css
+++ b/static/style.css
@@ -28318,10 +28318,12 @@ button .spinner-whirlpool {
 .email-reader-meta-details {
   display: flex;
   flex-direction: column;
-  /* 6px between To and Cc, pulled up 6px to sit close under From
-     (2px more breathing room than before). */
+  /* 6px between To and Cc, pulled up 8px to match where they end up
+     when the cluster snaps to absolute overlay — keeps the position
+     stable across the transition so they don't jump 2px upward at
+     the breakpoint. */
   gap: 6px;
-  margin-top: -6px;
+  margin-top: -8px;
 }
 .email-reader-meta-details[hidden] { display: none; }
 .email-reader-header > .email-reader-meta {