jupyterlab/examples/filebrowser/index.css

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/
body {
  margin: 0;
  padding: 0;
}

#main {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  bottom: 10px;
  padding: 8px;
}

.jp-FileBrowser {
  min-width: 400px;
}