The main idea of the layout mode Flexbox layout introduced by CSS3 is to give the container the ability to allow its sub-items to change their width and height to fill the available space in the best way. Flex containers use Flex items to automatically expand and contract to fill available free space.
The main idea of the layout mode Flexbox layout introduced by CSS3 is to give the container the ability to allow its sub-items to change their width and height to fill the available space in the best way. Flex containers use Flex items to automatically expand and contract to fill available free space.