DOC: whatsnews for style fixes

closes #12317

Author: TomAugspurger

doc/source/whatsnew/v0.18.0.txt

@@ -954,6 +954,8 @@ Bug Fixes
 - Bug in ``DataFrame.duplicated`` and ``drop_duplicates`` causing spurious matches when setting ``keep=False`` (:issue:`11864`)
 - Bug in ``.loc`` result with duplicated key may have ``Index`` with incorrect dtype (:issue:`11497`)
 - Bug in ``pd.rolling_median`` where memory allocation failed even with sufficient memory (:issue:`11696`)
+- Bug in ``DataFrame.style`` with spurious zeros (:issue:`12134`)
+- Bug in ``DataFrame.style`` with integer columns not starting at 0 (:issue:`12125`)
 - Bug in ``.style.bar`` may not rendered properly using specific browser (:issue:`11678`)
 - Bug in rich comparison of ``Timedelta`` with a ``numpy.array`` of ``Timedelta`` that caused an infinite recursion (:issue:`11835`)
 - Bug in ``DataFrame.round`` dropping column index name (:issue:`11986`)