mat-tree,
.mat-tree {

  .mat-button-wrapper {
    justify-content: center;

    .mat-icon {
      margin-right: 0;
    }
  }

  .mat-icon-button[disabled],
  .mat-icon-button[disabled][disabled] {
    border:none;

  }

  mat-checkbox,
  .mat-checkbox {
    label {
      margin-bottom: 0px;
    }
  }


  mat-form-field,
  .mat-form-field {
    .mat-form-field-wrapper {
      padding-bottom : 0px;
    }
  }

}