LayoutTests/fast/forms/placeholder-content-clipping-padding-box.html

<style>
input {
  font-family: Ahem;
  font-size: 20px;
  height: 20px;
  padding-top: 10px;
  padding-bottom: 10px;
  width: 600px;
  border-color: transparent;
}
input::placeholder {
  color: green;
}
</style>
<input type="text" placeholder="PASS if this is NOT clipped.">