BUG: Empty DataFrame.style.render raises IndexError

[TomAugspurger]

Code Sample, a copy-pastable example if possible

In [6]: pd.DataFrame().style.render()
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-6-345e1b37074e> in <module>()
----> 1 pd.DataFrame().style.render()

/Users/taugspurger/Envs/dask-dev/lib/python3.6/site-packages/pandas/formats/style.py in render(self)
    416         """
    417         self._compute()
--> 418         d = self._translate()
    419         # filter out empty styles, every cell will have a class
    420         # but the list of props may just be [['', '']].

/Users/taugspurger/Envs/dask-dev/lib/python3.6/site-packages/pandas/formats/style.py in _translate(self)
    252                            "is_visible": True})
    253
--> 254             for c in range(len(clabels[0])):
    255                 cs = [COL_HEADING_CLASS, "level%s" % r, "col%s" % c]
    256                 cs.extend(cell_context.get(

IndexError: list index out of range

Problem description

We assume that there's at least one column (and probably row)

Expected Output

Should match the output of an empty DataFrame in the notebook

[JimStearns206]

I'll take a stab at this (I'm at PyCon sprint).