What is Flexbox?

The Flexbox Layoutmodule of CSS : it provids us an efficient way to design the lay out, align and distribute space among items within a container block element, even when their size is unknown/dynamic and hence its called Flex = Flexible layout that would adapt to the dynamic size of its contents and space available.

A container element with display: flex would have the ability to alter its items’ width/height (and order) to best fill the available space in a given display size. A flex container can expands items to fill available free space or shrinks them to prevent overflow. Of course we can control how it fills using the flex css properties.

The flexbox layout is direction-agnostic as opposed to the regular layouts (block which is vertically-based and inline which is horizontally-based), we can specify if the container should aling its items horizontally or verically.