Displaying tiles of only video participants

Hi, I am looking to modify Jitsi so that the tiles of only the participants with their video on are visible. and the remaining participants remain hidden. I have been able to achieve this functionality, however Jitsi is leaving blank spaces within its interface for the participants which are hidden with their video off. This is happening both in the film strip view and the tiled video. Any help would be appreciated.

.tile-view .display-avatar-only {display: none !important  ; position : relative !important ; left : auto !important ; top : auto !important;height: 0px !important; width: 0px !important; min-height: 0px !important; min-width: 0px !important;}
.tile-view .display-video { position : relative !important ; left : auto !important ; top : auto !important ; }

.filmstrip__videos > div {flex-wrap: wrap !important; }
.vertical-filmstrip .filmstrip {display: none }

.filmstrip__videos .remote-videos > div:first-child {height : auto !important ;}

If you do not want to hide flimstrip from certain users you can use following for them replace line 4 with

.vertical-filmstrip .filmstrip {display: flex !important }