diff --git a/web/zebra-spaces.html b/web/zebra-spaces.html
index d484a27..978325c 100644
--- a/web/zebra-spaces.html
+++ b/web/zebra-spaces.html
@@ -2632,6 +2632,13 @@ function handleRemoteSfuTrack(ev){
if (kind === 'screen' || kind === 'camera' || kind === 'game'){
logLine('', 'sfu ontrack: kind=' + kind + ' pub=' + pubHex +
' track=' + ev.track.kind + ' mute=' + ev.track.muted + ' state=' + ev.track.readyState);
+ /* Video receivers (screen / camera / game) match the audio receiver's
+ * playoutDelayHint so the picture stays in sync with the voice. The
+ * mic jitter buffer is 4s; without a matching hint on video, mouse
+ * clicks / mouth movement / keystrokes lead the voice by ~4s. Audio
+ * is more vital than video — video adapts to audio's delay, never
+ * the other way around. */
+ try { if (ev.receiver) ev.receiver.playoutDelayHint = RECV_PLAYOUT_DELAY_SEC; } catch(_){}
}
/* MSID-supplant safety: the SFU re-uses the same streamID
* (`shortPub-kind`) when a publisher supplants themselves. WebRTC
@@ -4941,8 +4948,8 @@ logLine('', 'ready — pick a handle, type a rendezvous code, enter the space');