test.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
    <head> 
        <title>learn how to parse lojban in your head</title>
        <link rel="stylesheet" type="text/css" href="boxes.css">
    </head>
    <body>
        <span class="parsed"><h1>parsed text</h1>
            <span class="sumti"><h1>sumti</h1> lo 
                <span class="free"><h1>free</h1> coi timos</span>
                <span class="tanru"><h1>tanru</h1>
                    <span class="gismu"><h1>gismu</h1> barda</span>
                    <span class="free"><h1>free</h1> u'i</span>
                    <span class="gismu"><h1>gismu</h1> gerku</span>
        </span></span></span>
        <span class="unparsed"><h1>unparsed</h1> ku klama lo zarci ku</span>
    </body>
</html>