next-ucap-messenger/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/chat.component.scss

.app-layout-chat-left-sidenav-chat-header {
  width: 100%;
  height: 50px;
}

.app-layout-chat-left-sidenav-chat-list {
  height: calc(100% - 50px);
}

.app-layout-chat-left-sidenav-chat-list-viewport {
  width: 100%;
  height: 100%;
}

.room-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}