<!DOCTYPE html>
<html>
<head>
<style>
#main { width: 200px;
height: 150px;
border: 1px solid #c3c3c3;
display: flex;
flex-flow: row wrap;
}
#main div { width: 50px;
height: 50px;
}
</style>
</head>
<body>
<h1>使用 JavaScript 更改 flex-flow</h1>
<div id="main">
<div style="background-color:coral;">A</div>
<div style="background-color:lightblue;">B</div>
<div style="background-color:khaki;">C</div>
<div style="background-color:pink;">D</div>
<div style="background-color:lightgrey;">E</div>
<div style="background-color:lightgreen;">F</div>
</div>
<p>单击“试一试”按钮将 flexFlow 属性的值设置为“column nowrap”。</p>
<button onclick="myFunction()">试一试</button>
<p><b>注意：</b> Internet Explorer 10 及更早版本不支持 flexFlow 属性。</p>
<script>
function myFunction() { document.getElementById("main").style.flexFlow = "column nowrap";}
</script>
</body>
</html>