diff --git a/map4.html b/map4.html
index 8b4fa1e..b76a37a 100644
--- a/map4.html
+++ b/map4.html
@@ -21,7 +21,7 @@
       <div>グループ：<span id="groupName"></span></div>
       <div>あなた：<span id="userName"></span></div>
     </div>
-    <button id="exitBtn" class="exit-btn">退出</button>
+    <button id="exitBtn" class="exit-btn cute">退出</button>
   </div>
 
   <div class="map-body">