diff --git a/src/app/participant-room/participant-room.component.scss b/src/app/participant-room/participant-room.component.scss
index edaeaf744fc3fb135465a6e113293ebbffab2266..f39ead8e5c76bac24ad6bedc8a5f32a5738a47b6 100644
--- a/src/app/participant-room/participant-room.component.scss
+++ b/src/app/participant-room/participant-room.component.scss
@@ -1,4 +1,5 @@
 mat-card {
+  width: 100%;
   max-width: 800px;
 }