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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-with-element-insert.html">
+<meta name="assert" content="The flex items inserted by script shuould follow the right direction what the flex-direction property directives." />
+<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:row</h1>
+    <div id="flex-direction-row" class="flex-container flex-direction-row"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div>
+
+    <h1>flex-direction:row-reverse</h1>
+    <div id="flex-direction-row-reverse"  class="flex-container flex-direction-row-reverse"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div>
+
+    <h1>flex-direction:column</h1>
+    <div id="flex-direction-column"  class="flex-container flex-direction-column"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div>
+
+    <h1>flex-direction:column-reverse</h1>
+    <div id="flex-direction-column-reverse"  class="flex-container flex-direction-column-reverse"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div>
+
+
+    <script>
+        var ids = ['flex-direction-row',
+            'flex-direction-row-reverse',
+            'flex-direction-column',
+            'flex-direction-column-reverse'];
+
+        for( var i in ids ){
+            var new_element = document.createElement("div")
+            new_element.className="flex-item";
+            new_element.innerHTML="new";
+            var container = document.getElementById( ids[i] );
+            container.appendChild( new_element );
+        }
+    </script>
+</body>
+</html>