@wordpress/block-library/build-style/categories/editor.css

Block library for the WordPress editor.

.wp-block-categories ul {
  padding-left: 2.5em;
}
.wp-block-categories ul ul {
  margin-top: 6px;
}

/* Center alignment for classic themes. */
[data-align=center] .wp-block-categories {
  text-align: center;
}

.wp-block-categories__indentation {
  padding-left: 16px;
}