The Encrypted Life of Astrid Farnsworth

form {width:50%; min-width:300px; margin:2em auto; color:black; background:#bbb; padding:10px 10px 0 10px;}
form > fieldset {border:0; padding:0;}
form > fieldset > legend {font-size:1.5em; font-weight:bold;
font-style:italic;}<form method="post" action="" id="signup">
    <fieldset>
        <legend>Further information is encrypted</legend>
                <p>You must decipher the code and enter the hidden
                message to proceed to the next page of my notes.</p>
                <ul id="code">
                <li><span>Encrypted code:</span> eqhmfd rbhdmbd</li>
                <li><span>Decryption algorithm:</span> Replace each letter in the code
    with the next letter in the alphabet (also known as a
                "Caesar shift").</li>
            </ul>
<script type="text/javascript">
//<![CDATA[
if (document.getElementById){
    document.getElementById("signup").onsubmit = checkForm;
}
 
From seeing this bit of code, you might think that this is a Serendip error. But actually, this code is information. Does it have meaning to you? I can find some meaning in it, since I wrote it using HTML, CSS, and Javascript. However, it is much easier to see its meaning through a web browser:
Lab Notes of Agent Astrid Farnsworth