jupyterlab/packages/notebook/style/toolbar.css

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Variables
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------

/*-----------------------------------------------------------------------------
| Styles
|----------------------------------------------------------------------------*/


.jp-NotebookPanel-toolbar {
  padding: 2px;
}

/* select wrapper */
.jp-Toolbar-item.jp-Notebook-toolbarCellType > .jp-select-wrapper {
  height: 100%;
  background-color: var(--jp-notebook-select-background);
}


.jp-Toolbar-item.jp-Notebook-toolbarCellType .jp-select-wrapper.jp-mod-focused {
  border: none;
  box-shadow: none;
}


/* Actual select element */
.jp-Notebook-toolbarCellType select.jp-Notebook-toolbarCellTypeDropdown {
  font-size: var(--jp-ui-font-size1);
  background-size: 16px;
  padding-right: 16px;
  border: none;
  border-radius: 0;
  outline: none;
  background-color: transparent;
}