On my newly created webpage, I have a column of links that all work except for the top two. I have double checked the code and all of it seems to be uniform. I am not too sure why it is not allowing me to click on the two links at the top, but the rest seem to be working perfectly. If anyone could take a crack at what the problem may be I would really appreciate it! I have pasted the section of the code that I thought might contain the problem! Thanks!
<!DOCTYPEhtml>
<html>
<head>
<title> Rockwell Utilities </title>
<link href="rockwell.css" rel="stylesheet" type="text/css"/>
</head>
<div class="pos_top"><div id="bubbles"><img src="/rockwell/sepiawater.jpg" alt="Water Drop" height="250" width="1000"/></div></div>
<div id="header"><div id="logo"><img src="/rockwell/Rockwellnewnewedit.png" alt="Rockwell Utilities" height="400" width="500" /></div></div>
</body>
<div id="wrapper">
<h1> Rockwell Utilities Welcomes You! </h1>
<div id="intro">
<p>Rockwell Utilities is your number one choice in water and sewage.<br> We provide service to the Lakemoor, Illinois area,
<br>and have since 2007.
</p>
<img src="/rockwell/award.png" alt="Illinois Department of Health" height="200" width="500"/>
<a href="http://www.idph.state.il.us/public/press12/2011_Fluoridation_award_list.pdf"> <p>Rockwell
Utilities wins Illinois Department of Health Community Water Fluoridation Award four consecutive years!</p>
</a>
</div>
<div id="navigation_sidebar">
<div id="navigation_links">
<p>
<a href="email.html" title="Email Us"><img src="/rockwell/emailus.png" alt="Email Us"/></a>
<a href="payments.html" title="Pay My Bill"><img src="/rockwell/paymybill.png"alt="Pay My Bill"/></a>
<a href="calendar.html" title="Calendar"><img src="/rockwell/calendar.png"alt="Calendar"/></a>
<a href="notices.html" title="Notices"><img src="/rockwell/notices.png"alt="Notices"/></a>
<a href="paymentop.html" title="Payment Options"><img src="/rockwell/paymentop.png"alt="Payment Options"/></a>
<a href="rates.html" title="Our Rates"><img src="/rockwell/ourrates.png"alt="Our Rates"/></a>
</p>