H1 Desktop - 48/56

H2 Desktop - 40/48

H3 Desktop - 32/40

H4 Desktop - 24/32

H5 Desktop - 20/28

H6 Desktop - 16/24

To be shown screen below 640px width

H1 Mobile - 32/36

H2 Mobile - 28/34

H3 Mobile - 24/32

H4 Mobile - 20/26

H5 Mobile - 16/24

H6 Mobile - 14/20