diff --git a/lib/ui/tiles/post_tile.dart b/lib/ui/tiles/post_tile.dart
index c5ba403..64ac36c 100644
--- a/lib/ui/tiles/post_tile.dart
+++ b/lib/ui/tiles/post_tile.dart
@@ -16,6 +16,7 @@ import 'package:comunic/ui/widgets/account_image_widget.dart';
 import 'package:comunic/ui/widgets/countdown_widget.dart';
 import 'package:comunic/ui/widgets/like_widget.dart';
 import 'package:comunic/ui/widgets/network_image_widget.dart';
+import 'package:comunic/ui/widgets/post_container_widget.dart';
 import 'package:comunic/ui/widgets/survey_widget.dart';
 import 'package:comunic/ui/widgets/text_widget.dart';
 import 'package:comunic/utils/date_utils.dart';
@@ -229,24 +230,26 @@ class _PostTileState extends State<PostTile> {
 
   @override
   Widget build(BuildContext context) {
-    return Card(
-      elevation: 1.0,
-      child: Column(
-        children: <Widget>[
-          Padding(
-            padding: const EdgeInsets.all(8.0),
-            child: Column(
-              children: <Widget>[
-                _buildHeaderRow(),
-                _buildContentRow(),
-                _buildButtonsArea(),
-              ],
+    return PostContainer(
+      child: Card(
+        elevation: 1.0,
+        child: Column(
+          children: <Widget>[
+            Padding(
+              padding: const EdgeInsets.all(8.0),
+              child: Column(
+                children: <Widget>[
+                  _buildHeaderRow(),
+                  _buildContentRow(),
+                  _buildButtonsArea(),
+                ],
+              ),
             ),
-          ),
-          Container(
-            child: widget.post.hasComments ? _buildComments() : null,
-          ),
-        ],
+            Container(
+              child: widget.post.hasComments ? _buildComments() : null,
+            ),
+          ],
+        ),
       ),
     );
   }
diff --git a/lib/ui/widgets/post_container_widget.dart b/lib/ui/widgets/post_container_widget.dart
new file mode 100644
index 0000000..db6306c
--- /dev/null
+++ b/lib/ui/widgets/post_container_widget.dart
@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+
+/// Here is a widget used to contain a post
+///
+/// @author Pierre Hubert
+
+class PostContainer extends StatelessWidget {
+  final Widget child;
+
+  const PostContainer({Key key, @required this.child})
+      : assert(child != null),
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Align(
+      alignment: Alignment.center,
+      child: ConstrainedBox(
+        constraints: BoxConstraints.loose(Size.fromWidth(500)),
+        child: child,
+      ),
+    );
+  }
+}