CSS Flexbox Complete Guide Flexbox is a powerful layout method that makes it easy to design flexible and responsive layout structures. Flex Container Properties Start by making an element a flex container: .container { display: flex; flex-direction: row; /* row | row-reverse | column | column-reverse */ justify-content: center; /* flex-start | flex-end | center | space-between | space-around | space-evenly */ align-items: center; /* stretch | flex-start | flex-end | center | baseline */ ...