The flex-flow CSS property defines the flex container's main and cross axis. It is a shorthand property for the flex-direction and flex-wrap properties. ... <看更多>

In this tutorial, we look at the " flex - flow " property in CSS Flexbox." flex - flow " is shorthand for both the " flex - direction " and " flex - wrap " ... ... <看更多>

{{CSSRef}}. The flex-flow CSS shorthand property specifies the direction of a flex container, as well as its wrapping behavior. ... <看更多>

You just have to apply flex-direction according to viewport. body { background-color: brown; } .wrapper { display: flex; flex-direction: ... ... <看更多>