LayoutTests/fast/inline/out-of-flow-content-with-padding-percent.html

<style>
body {
  font-family: Ahem;
  font-size: 10px;
}

.outer {
  position: relative;
  padding-left: 50px;
  width: 100px;
  height: 100px;
  background-color: green;
}

.inner {
  position: absolute;
  left: 0px;
  padding-left: 100%;
  color: green;
}
</style>
<div class="outer">
  <div class="inner">PASS if visible</div>
</div>