Github user mwpenny commented on the issue:
https://github.com/apache/zeppelin/pull/1210
@corneadoug I'm all to familiar with that magic when trying to reproduce
bugs ;)
I've made the changes.
* __Small popup:__ The side and bottom margins of the popup are present due
to yesterday's changes (differentiating the white of the popup from the white
of the paragraph) and the extra-large top margin is from Esri's CSS. After
decreasing the top margin the popup is still very cluttered but a bit more
usable.

Even with some extra CSS styling, I just don't think there's enough space
to display the popup nicely in a paragraph that small. Other graph modes have a
similar problem which users are likely already accustomed to:

* __Internet error message:__ I went with a look similar to the other graph
modes:

* __Lazy loading:__ Similar to the way esriLoader loads the map JavaScript,
the CSS is now lazy loaded the first time it is needed.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---