 is >= 1, so the flex container is sized to the max-content contribution of the item.
     Note that Gecko, Blink and WebKit use the flex-basis instead. -->
<div class="flexbox column">
  <div class="flex-one-one-zero-px" data-expected-height="0">Flex item with flex: 1 1 0px</div>
</div>

<div class="flexbox column vertical">
  <div class="flex-zero" data-expected-width="14">Flex item with flex: 0</div>
</div>

<div class="flexbox column vertical">
  <div class="flex-zero-one-zero-percent" data-expected-wid