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+<!DOCTYPE html>
+<html>
+ <head>
+  <title>CSS Test: flex-direction:row has the same orientation as inline axis</title>
+  <link rel="author" title="Sylvain Galineau" href="mailto:galineau@adobe.com">
+  <link rel="reviewer" title="Arron Eicholz" href="mailto:arronei@microsoft.com">
+  <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#flex-direction">
+  <link rel="match" href="flex-direction-row-vertical-ref.html">
+  <meta name="assert" content="This test checks that the main axis of the row flex-direction has the same orientation as the inline axis of the current vertical writing mode">
+  <style>
+    #vertical {
+      writing-mode: vertical-lr;
+    }
+
+    .test {
+      display: flex;
+      width: 3em;
+      flex-direction :row;
+    }
+
+    .test > span {
+      width: 1em;
+      direction: ltr;
+    }
+
+    #row-ltr {
+      direction: ltr;
+    }
+
+    #row-rtl {
+      direction: rtl;
+    }
+  </style>
+ </head>
+ <body>
+  <p>Test passes if both the two columns below are identical.</p>
+  <div id="vertical">
+    <div class="test" id="row-ltr">
+      <span>A</span><span>B</span><span>C</span>
+    </div>
+    <div class="test" id="row-rtl">
+      <span>C</span><span>B</span><span>A</span>
+    </div>
+  </div>
+ </body>
+</html>