The linked article states that CSS breakpoints should group "similar" screen sizes and thus be at:
- 600px "narrow"
 - 900px "medium"
 - 1200px "wide"
 - (1800px) "huge"
 
By choosing these breakpoints, most device screens will be somewhere between two breakpoints, and not at the very edge of them.
The ranges could be called:
- narrow (< narrow)
 - medium (narrow - medium)
 - normal (medium - wide)
 - wide (wide - huge)
 - huge (> huge)
 
Posted by Dominik Schöler to makandra dev (2016-12-08 08:53)