<!DOCTYPE html>
<html lang="en-US"><head>
  <title>CSS Reference: CSS 2.1 replaced element sizing</title>
  <link href="http://dbaron.org/" rel="author" title="L. David Baron">
  <link href="http://www.w3.org/TR/CSS21/visudet.html#inline-replaced-width" rel="help">
  <link href="http://www.w3.org/TR/CSS21/visudet.html#inline-replaced-height" rel="help">
  <link href="http://www.w3.org/TR/CSS21/visudet.html#min-max-widths" rel="help">
  <meta content="should" name="flags"> <!-- undefinedness in 10.3.2 -->
  <style type="text/css">

  div { width: 200px }

  span {
    display: inline-block;
    width: 40px;
    height: 20px;
  }

  </style>
</head>
<body>

<div>
  <span style="background: black;"></span>, <!-- height-25-width-50 -->
  <span style="background: fuchsia;"></span>, <!-- height-25-ratio-2 -->
  <span style="background: silver;"></span>, <!-- width-50-ratio-2 -->
  <span style="background: blue; height: 25px"></span>, <!-- height-25-no-ratio -->
  <span style="background: orange; height: 150px"></span>, <!-- width-50-no-ratio -->
  <span style="background: gray"></span>, <!-- ratio-2 -->
  <span style="background: aqua; height: 150px"></span>. <!-- no-ratio -->

</div>



</body></html>