diff --git a/firmware/cyd/media/preview.html b/firmware/cyd/media/preview.html
index 1fd5bd4..2d60cb1 100644
--- a/firmware/cyd/media/preview.html
+++ b/firmware/cyd/media/preview.html
@@ -5,10 +5,10 @@
 <title>POMO</title>
 <style>
   *{box-sizing:border-box;margin:0;padding:0}
-  html,body{width:100%;height:100%;overflow:hidden;background:#000}
-  .bezel{width:100%;height:100%;display:grid;place-items:center;background:#1a1408}
+  html,body{width:320px;height:240px;overflow:hidden;background:#000;margin:0}
+  .bezel{width:320px;height:240px;background:#1a1408}
   .screen{width:320px;height:240px;background:#0A1016;color:#EAF0F6;font:12px/1.2 system-ui,sans-serif;
-    position:relative;overflow:hidden;transform-origin:center;transform:scale(var(--s,1))}
+    position:relative;overflow:hidden;}
   .title{position:absolute;left:12px;top:4px;color:#E85D4C;font-size:20px;font-weight:700}
   .chip{position:absolute;right:12px;top:8px;color:#7A8B9C}
   .pm{position:absolute;left:12px;top:32px;width:40px;height:44px;border:0;border-radius:8px;background:#243140;color:#EAF0F6;font-size:18px}
@@ -50,10 +50,6 @@
   <div class="audio">Speaker OFF</div>
   <div class="acts"><button class="start" type="button">START</button><button class="reset" type="button">RESET</button></div>
 </div></div>
-<script>
-(function(){function fit(){var s=document.getElementById('s');var r=s.parentElement.getBoundingClientRect();
-s.style.setProperty('--s',Math.min(r.width/320,r.height/240));}
-fit();addEventListener('resize',fit);})();
-</script>
+
 </body>
 </html>