diff --git a/.changeset/lazy-owls-complain.md b/.changeset/lazy-owls-complain.md
new file mode 100644
index 0000000000..3d921412d7
--- /dev/null
+++ b/.changeset/lazy-owls-complain.md
@@ -0,0 +1,5 @@
+---
+"@swisspost/design-system-components": patch
+---
+
+Added styles to center the `post-closebutton` button within its container.
diff --git a/packages/components/src/components/post-closebutton/post-closebutton.scss b/packages/components/src/components/post-closebutton/post-closebutton.scss
index f4791235a7..8c0fda3803 100644
--- a/packages/components/src/components/post-closebutton/post-closebutton.scss
+++ b/packages/components/src/components/post-closebutton/post-closebutton.scss
@@ -18,6 +18,9 @@ post-closebutton .btn {
   border-radius: tokens.get('close-border-radius');
   background-color: tokens.get('close-enabled-bg');
   color: tokens.get('close-enabled-fg');
+  display: flex;
+  align-items: center;
+  justify-content: center;
 
   > post-icon {
     min-width: tokens.get('close-icon-size');