flex 1 1 160px code example
Example 1: flex parameters
flex: none | [ <'flex-grow'> <'flex-shrink'>? || <'flex-basis'> ]
Example 2: what does flex do
The flex CSS property sets how a flex item will grow or shrink to fit the space
available in its flex container. It is a shorthand for flex-grow , flex-shrink ,
and flex-basis .