diff --git a/src/button/ReactionToggleButton.module.css b/src/button/ReactionToggleButton.module.css
index 317d85b5..44da8235 100644
--- a/src/button/ReactionToggleButton.module.css
+++ b/src/button/ReactionToggleButton.module.css
@@ -5,6 +5,11 @@
   top: -8em;
   border-radius: var(--cpd-space-4x);
   display: flex;
+  width: fit-content;
+  left: 0;
+  right: 0;
+  margin-left: auto;
+  margin-right: auto;
 }
 
 .reactionPopupMenu menu {