obsidian/.obsidian/plugins/attachment-management/styles.css

/*

This CSS file will be included with your plugin, and
available in the app when your plugin is enabled.

If your plugin does not need CSS, delete this file.

*/
.attach_management_sub_setting {
  padding-left: 2em;
}
.attach_management_sub_setting + .attach_management_sub_setting {
  padding-left: 0;
  margin-left: 2em;
}