After this we begin to write media queries. Media queries are conditions, which css rules will be work.
Media queries example:
I note three important areas:
1 – device for emulation.
2 – orientation (portrait or landscape).
3 – Current CSS rules.
In conclusion it is important to note you strongly don’t need to use min-device-width. You can read about it here
In addition you can read about media queries about here.
Also I add the list of main media queries for main devices