Hi, When I load the website http://klotz-sentry.com/ for the first time, the video is started via the playback button of the video player (html5). The video will play normally as expected. If I reload the site and click the play button, the video will also start, but the site jumps down quite a bit. The video is then no longer visible and you have to scroll up again. The jump goes from the orange frame to the red frame. This only happens in Firefox. All other browsers work as expected. I use Firefox 76.0.1 (64-bit). I didn't set any anchors and it would still be surprising if the play button triggered a jump to an anchor. The HTML code is very simple. What can be the reason for this undesirable behavior? Best regards Michael