Offense only `vmax` viewport-unit

[AlexWayfer]

I have the CSS:

min-width: 100vw;

And I'm getting the offence:

Unexpected browser feature "viewport-units" is only partially supported by IE 11

But at caniuse.com I see:

Partial support refers to not supporting the "vmax" unit.

[clshortfuse]

Tag #160