flex-flow: column wrap

Elemento A
Elemento B
Elemento C
Elemento D


Codice
<style>
.container {
display: flex;
flex-flow: column wrap;
height: 200px;
width: 150px;
background-color: #e0e0e0;
}
.item {
flex: 1;
padding: 10px;
background-color: #2196F3;
color: white;
margin: 2px;
text-align: center;
}
</style>
</head>
<body>

<h2>flex-flow: column wrap</h2>
<div class="container">
<div class="item">Elemento A</div>
<div class="item">Elemento B</div>
<div class="item">Elemento C</div>
<div class="item">Elemento D</div>
</div>