<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Flex demo 2</title>
<style>
.container {
display: flex;
flex-direction: column;/*改變主軸方向，column列從上往下,默認是row行從左往右*/
width: 400px;
height: 300px;
border: 1px solid #ccc;
}
.item {
flex: 1;
}
/* 總的是4份，每一項占一份 */
</style>
</head>
<body>
<div class="container">
<div class="item" style="background-color: #0ff; width: 200px"></div>
<div class="item" style="background-color: #ff0"></div>
<div class="item" style="background-color: #f00"></div>
<div class="item" style="background-color: #f0f"></div>
<div class="item" style="background-color: #0ff"></div>
</div>
</body>
</html>
