diff --git a/jpc/index.html b/jpc/index.html
index b0f70e9..8c3a21a 100644
--- a/jpc/index.html
+++ b/jpc/index.html
@@ -68,8 +68,8 @@
             'sketch_231005a/bg/jpc16.png',
         ];
         let imgIndex = 0;
-        let x = Math.random() * window.innerWidth;
-        let y = Math.random() * window.innerHeight;
+        let x = (window.innerWidth - 100) /2;
+        let y = (window.innerHeight - 100) /2;
         let xSpeed = 2;
         let ySpeed = 2;