bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/webcam/styles.scss

%resizable {
  &:hover {
    background-color: rgba(255, 255, 255, .3);
  }
}

.resizeWrapperH {
  div {
    @extend %resizable;
    width: 100% !important;
  }
}

.resizeWrapperV {
  div {
    @extend %resizable;
    height: 100% !important;
  }
}

.draggable {
  video {
    cursor: grabbing;
  }
}

.draggingBg {
  background-color: rgba(200, 200, 200, 0.5);
}