Div is not visible only in Firefox?

[Fonz]

I have the following css for my error div:\[code\].side_error {width: 325px;position: absolute;top: 0;left: -335px;padding: 8px 0 0 0;text-align: right;color: #FF0000;display: block;}\[/code\]and the following css for my table td:\[code\].main_form td {padding: 5px 0 5px 0;position: relative;}\[/code\]And my HTML structure:\[code\]<table class="main_form" align="center"><tbody><tr><td class="title_area"><h2>Create an account</h2><span>(or <a href="http://stackoverflow.com/questions/13853582/#">Sign In</a>)</span></td></tr><tr><td><div class="side_error">please enter your full name >></div><input type="text" name="fullname" placeholder="Full Name" class="input"></td></tr><tr><td><input type="text" name="email" placeholder="Email" class="input"></td></tr><tr><td><input type="password" name="pass1" placeholder="Password" class="input"></td></tr><tr><td><input type="password" name="pass2" placeholder="Repeat Password" class="input"></td></tr><tr><td class="submit_area"><span><input type="checkbox" name="terms" value="http://stackoverflow.com/questions/13853582/yes" id="rm"><label for="rm"> I agree to <a href="http://stackoverflow.com/questions/13853582/#">**** Terms</a>.</label></span><input type="submit" name="submit" class="submit" value="http://stackoverflow.com/questions/13853582/Create Account"></td></tr></tbody></table>\[/code\]The div with class \[code\]side_error\[/code\] seems to appear in every browser exactly how I want it but in Firefox (version 17.0.1) it doesn't display at all, even when I use Firebug the div doesn't get colored when hovering the html code, its like it doesn't exist at all.Any ideas?