diff --git a/semag/sb2toswf/index.html b/semag/sb2toswf/index.html
index 0d8ef2d0..fe4d32cd 100644
--- a/semag/sb2toswf/index.html
+++ b/semag/sb2toswf/index.html
@@ -18,8 +18,8 @@
         const player = ruffle.createPlayer();
         const container = document.getElementById("ruffle");
         player.id = "player";
-        player.style.width = "100%";
-        player.style.height = "100%";
+        player.style.width = "55%";
+        player.style.height = "55%";
         container.appendChild(player);
         player.load("Converter.swf");
       });