is there an easy way for me to determine which HTML/CSS features are safe to use in my solution? I'm currently using RhoStudio 7.2.3, and my solution will be executing on a range of devices, mostly running Android 8, but going all the way down to 5.1. Can I read this information from sites such as caniuse.com, or are there others with better details for this environment?
And in that case the element turned green, both on the emulator and the device itself. This shows that the @supports feature works on this device, at least, and that I am able to use CSS flexbox on those devices.
I will perform those same tests on a device running Android 6.0, hoping that the flexbox support is present there as well.