<html>
<head>
<script>
function doe2(i) {
document.documentElement.offsetHeight;
document.getElementById('a').setAttribute('style', 'display: -moz-inline-box;');
document.documentElement.offsetHeight;
}
</script>
</head>
<body style="float: right; -moz-column-count: 2; height: 20%;" onload="setTimeout(doe2,0);">
  <div style="display: none;"></div>
  <ul style="display: -moz-inline-box;"></ul>
  <span id="a">
    <ul style="display: -moz-grid; overflow: scroll;"></ul>
      <span style="display: -moz-inline-box; height: 10px;">
        <span style="position: absolute;"></span>
      </span>
  </span>
</body>
</html>