Codepens are clipped confusingly

[alexcjohnson]

Noticed this on a few of the examples in https://plot.ly/javascript/hover-events/ - some important elements are scrolled off of the codepen viewport, but the box it's in has whitespace at the bottom as if the codepen should have had a bigger viewport. For example the "Go" button is nowhere to be found initially:

cc @cldougl

[cldougl]

@alexcjohnson I've edited the embed size of those examples so they should be good now. Feel free to take a look to double check that you're not still seeing that issue

[alexcjohnson]

Looks great, thanks!