<!DOCTYPE html>
<html>
<head>
<title>Setting vertical space between Flexbox items</title>
<style>
.container {
display: flex;
flex-direction: column;
align-items: space-between;
background: yellow;
}
.item {
margin-bottom: 10px;
border: 1px solid red;
}
</style>
</head>
<body>
<div class="container">
<div class="item">Item 1</div>
<div class="item">Item 2</div>
<div class="item">Item 3</div>
</div>
</body>
</html>