Lilly... Wait for it... Villetorte

<!DOCTYPE html>
<html>
    <head>
        <title>Lilly Villetorte</title>
        <style>
            body{
                weight: 4.160kg;
                size: 50cm;
            }
        </style>
    </head>
    <body>
        Mom's pregnancy: <progress max="9 months" value="9 months + 2 days" />
        Saw the world for the first time on <time datetime="2012-11-20 22:02">november 20th 2012, 22h02</time>

        Gender:
        <select name="gender">
            <option value="boy">It's a boy!</option>
            <option value="girl" selected>It's a girl!</option>
        </select>

        Mom, dad & older brother happiness: <input type="range" name="happiness" value="over 9000" />

        <audio id="cry">
            <source src="cry.ogg" type="audio/voice" />
        </audio>

        <script type="text/javascript">
            document.getElementsByName('Lilly')[0].addEventListener('birth', function(){
                alert('Hello world!');
                document.getElementById('cry').play();
            }, false);
        </script>
    </body>
</html>