diff --git a/loc-chase2.html b/loc-chase2.html
index d311774..cc85c26 100644
--- a/loc-chase2.html
+++ b/loc-chase2.html
@@ -119,7 +119,7 @@
   <style>
     #locationmap {
       width: 90vw;
-      height: 400px; /* ←固定値に変更 */
+      height: 75vw; /* ←元の指定に戻しました */
       margin: auto;
     }
   </style>