// In this example code block, "column" is the value of the property "flex-direction" and "wrap" is the value of the property "flex-wrap". .container { display: flex; flex-flow: column wrap; }/* Flex-flow combines flex-wrap and flex-direction because they were used together so often, and devs wanted to simplify it.*/ /*Normal*/ * { flex-direction: column-reverse; flex-wrap: wrap; } /*Flex-flow*/ * { flex-flow: column-reverse wrap; }.container{ flex-flow: (flex-direction) (flex-wrap); }