Chart container does not appear within Display Flex Container

# 🐛Bug report

**Describe the bug**
When a ``, wrapped in the `` component is within a `display: flex` container, the chart will not appear in the DOM

**To Reproduce**
Steps to reproduce the behavior:
I have created a test repo here: https://github.com/zbayoff/react-timeseries-charts-example
using the [Simple Bar Chart Example](http://software.es.net/react-timeseries-charts/#/example/barchart). The test repo is created with the Create React App code.

Clone the repo, `npm install` and `yarn run start`.

**Expected behavior**
The bar chart should show in the DOM. Setting the `row` class to `display: block` and the bar chart will appear. It is necessary, in my app, however, that the container is `display: flex`.

**Desktop (please complete the following information):**
- OS: iOS
- Chrome
- Version 79.0.3945.130 (Official Build) (64-bit)