Android 5.0 Map is not defined

This would be a nice little feature to have, Excel users are using this a lot.

Calendar legend labels are not visible in dark theme

To Reproduce

1. Go to https://nivo.rocks/calendar/
2. Click on 'light/dark' switch and enable dark mode
3. See legend texts

Expected behavior
legend texts should have same fill color as year/month labels and be at least visible

Screenshots

<img width="1163" alt="Bildschirmfoto 2020-10-09 um 15 35 53" src="https://

https://html.spec.whatwg.org/multipage/browsers.html#fully-active
The last few words should be changed as below:

- or d's container document is fully active.
+ or d's browsing context's container document is fully active.