Demo flexbox vertical-in-horizontal

A one

A two

A three

A four

B one

B two

B three

B four

C one

C two

C three

C four

'flex: 3'

'flex: 0'

'flex: 1'

'flex: 0'

A one	A two	A three	A four
B one	B two	B three	B four
C one	C two	C three	C four
'flex: 3'	'flex: 0'	'flex: 1'	'flex: 0'

A one	A two	A three	A four
B one	B two	B three	B four
C one	C two	C three	C four
'flex: 3'	'flex: 0'	'flex: 1'	'flex: 0'