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<!DOCTYPE html>
<html>
<head>
<title>CSS Test: flex flow direction</title>
<link rel="author" title="houzhenyu" href="http://www.github.com/sskyy" />
<link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#flex-direction">
<link rel="match" href="reference/flex-direction-modify.html">
<meta name="assert" content="Changing 'flex-direction' with JavaScript and then changing it back should returns to the original look." />
<style>
.flex-container{
display: flex;
margin:20px;
background: #333;
}
.flex-item{
width:50px;
height:50px;
margin:20px;
background: #eee;
line-height: 50px;
text-align: center;
}
.flex-container.flex-direction-row{
flex-direction : row;
}
.flex-container.flex-direction-row-reverse{
flex-direction : row-reverse;
}
.flex-container.flex-direction-column{
flex-direction : column;
}
.flex-container.flex-direction-column-reverse{
flex-direction : column-reverse;
}
</style>
</head>
<body>
<h1>flex-direction:<span id="current_direction">row</h1>
<div id="flex_container" class="flex-container"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div>
<script>
var container = document.getElementById("flex_container");
var direction_text = document.getElementById("current_direction");
var baseClass = "flex-container ";
var classPrefix = "flex-direction-";
function change_direction( direction ){
container.className = baseClass + classPrefix + direction;
notify( direction );
}
function notify( direction ){
direction_text.innerHTML = direction;
}
change_direction("row");
change_direction("row-reverse");
change_direction("column");
change_direction("row-column-reverse");
change_direction("row");
</script>
</body>
</html>
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