css/css-flexbox/flex-basis-009.html

<!DOCTYPE html>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='/resources/check-layout-th.js'></script>
<link rel="author" title="David Grogan" href="dgrogan@chromium.org">
<link rel="help" href="https://www.w3.org/TR/css-flexbox-1/#valdef-flex-basis-auto">
<meta name="assert" content="flex-basis:auto on orthogonal item in horizontal column flexbox is calculated correctly" />

<style>
x-word-h {
  display: inline-block;
  height: 10px;
  width: 20px;
  background: blue;
}

x-word-v {
  display: inline-block;
  height: 20px;
  width: 10px;
  background: blue;
}

* {
  /* This is for easier manual calculations, not necessary to demonstrate behavior. */
  line-height: 0;
}
</style>

<div id=flexbox style="width:150px; background:green; height:400px; display:flex; flex-direction:column">
  <div style="writing-mode: vertical-rl;background:orange; flex:1 1 auto" data-expected-height=225>
    <x-word-v></x-word-v><x-word-v></x-word-v><x-word-v></x-word-v>
  </div>
  <div style="background:lightblue; flex: 1 1 auto">
    <x-word-h></x-word-h><x-word-h></x-word-h><x-word-h></x-word-h>
  </div>
</div>

<script>
checkLayout('#flexbox');
</script>