d, reduced by a max-width declaration. If 'width' of a floating, non-replaced element computes to 'auto' but its own child uses a constrained length resulting from a max-width declaration, then such constrained length will define the preferred width in 'shrink-to-fit' width calculation." name="assert">
  <meta content="ahem" name="flags">

  <style type="text/css">
  div
  {
  background-color: red;
  float: left;
  font: 32px/4 Ahem;
  width: auto;
  }

  div > div
  {
  background-color: green;
  max-widt