I can’t fix these errors. They are all related:
Line 110, Column 36: document type does not allow element "INPUT" here; missing one of "P", "H1", "H2", "H3", "H4", "H5", "H6", "PRE", "DIV", "ADDRESS" start-tag
<input name="query" type="text">
Line 111, Column 66: document type does not allow element "INPUT" here; missing one of "P", "H1", "H2", "H3", "H4", "H5", "H6", "PRE", "DIV", "ADDRESS" start-tag
<input type="submit" name="submit" id="submit" value="Search">
Line 112, Column 8: end tag for "FORM" which is not finished
/form>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
<head>
<title>Griffith Dating Connection</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" type="text/css"href="style.css">
</head>
<body>
<div id="container">
<div id="header">
<div class="title"><a href="#">The Griffith Dating Connection</a></div>
<div class="subtitle">find your "study buddy"</div>
<div class="intro-part1">Where Griffith singles meet.</div>
<div class="intro-part2"></div></div>
<div id="nav">
<div id="nav-in-top">
</div>
<div id="nav-in-middle">
<p class="title2">Navigation</p><br>
<span>
<a class="menu" href="index.html">Home</a>
<a class="menu" href="allusers.php">View All Users</a>
<a class="menu" href="doc.html">Documentation</a>
</span>
<p> </p>
<div class="form">
<h3>User Login</h3>
<div class="loginbox">
<form action="processlogin.php" method="post">
<table border="0" cellspacing="0" cellpadding="5">
<tr>
<td>Username</td>
</tr>
<tr>
<td><input type="text" name="UserName" /></td>
</tr>
<tr>
<td>Password</td>
</tr>
<tr>
<td><input type="text" name="Password" /></td>
</tr>
<tr>
<td><input type="submit" value="Login" /></td>
</tr>
</table>
</form>
</div> <p>New User Register <a href="create.php">here</a>.</p>
<div class="reg">
</div></div>
<p class="title2">Our 5 newest members</p><br>
<div class="menu2">Username|Age|Gender</div>
<div class="menu2"> <a href="profile.php?profile=19">newer</a>
41
Male
</div>
<div class="menu2"> <a href="profile.php?profile=18">newer</a>
41
Male
</div>
<div class="menu2"> <a href="profile.php?profile=17">newer</a>
41
Male
</div>
<div class="menu2"> <a href="profile.php?profile=16">newer</a>
41
Male
</div>
<div class="menu2"> <a href="profile.php?profile=15">newer</a>
41
Male
</div>
</div>
</div>
<div id="nav-in-bottom"></div>
<div id="content">
<p class="title2"><b>Dating</b></p>
<br>
<blockquote>
<p>This is the griffith dating connection. Here students may come and find their one true "study buddy". We hope this website is easy to use as well as effective in finding your "study buddy". Remember to always have "study protection" and that people may not be who they say they are. Always update your "anti-virus protection" when "studing".</p>
</blockquote>
<br>
<div id="box">
<div class="content_left">
<h3>Search</h3>
<div class="form">
<form name="form1" method="get" action="results.php">
<input name="query" type="text">
<input type="submit" name="submit" id="submit" value="Search">
</form>
</div>
</div>
<div class="content_right">
<h3>Lorem Ipsum</h3>
<img src="images/img2.jpg" class="floatTL" alt="#" />
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut
laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation
ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor
in hendrerit in vulputate velit esse molestie consequat.</p>
</div>
</div>
</div>
<div id="footer"> Josip Zirdum Griffith Student Number "s2794971" </div>
</div>
</body>
</html>
In the DTD you are using,
<input>elements cannot be children of<form>elements. You need to have a block container (such as a<div>or a<fieldset>) between the<form>and the<input>.