List item with column

/*
  border:3px solid pink;
  display: flex;
   flex-direction: column;

  flex-direction: column;
  height:400px;
  flex-wrap: wrap;

  flex-flow: column-reverse wrap-reverse;
  justify-content: flex-end, center, flex-start, space-between, space-around, space-evenly;
align-items: flex-start, flex-end, center, baseline, stretch
  height:800px;
  justify-content: center;
*/

.container {
  border:3px solid pink;
  display: flex;
  flex-direction: column;
  height:400px;
  flex-wrap: wrap;
}

.container .list-item {border:1px solid red;list-style: none;font-size: 20px;padding:10px;color:#fff;}