.td-workspace-mid {
  display: flex;
  flex-direction: row;
  width: 100%;
  flex-shrink: 1;
  height: 100%;
  position: relative;
  &-cent {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    overflow: scroll;
    position: relative;
    .m-editor-stage {
      flex: 1;
      
      flex-shrink: 0;
      height: calc(100% - 200px);
    }
  }

  & .td-gutter {
    flex-grow: 0;
  }
}