<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <title>CSS Reftest Reference</title>
  <link rel="author" title="Hanrui Gao" href="mailto:hanrui.gao@gmail.com"/>
  <style type="text/css"><![CDATA[
   #container {
     width: 240px;
     height: 60px;
     border: 1px solid #000;
   }
   #container > div {
     height: 100%;
     float: left;
   }
   #child_1 {
     width: 30px;
     background