<![CDATA[
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>flex 세로 레이아웃 만들기</title>
<style>
.container {
display: flex;
flex-direction: column;
}
.item {
height: 10vh;
background-color: #fea;
border: 2px solid #cdf;
border-radius: 3px;
text-align: center;
margin: 10px;
}
</style>
</head>
<body>
<div class="container">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
</div>
</body>
</html>
]]>