[Plugin: Theme My Login] Login Form leaks outside the Sidebar

Hi everyone,
I’m trying to configure the Theme My Login plugin on my website but I have a small problem with the login username and password boxes, in that they are leaking out of the side of my sidebar onto the webpage.

I’ve checked through all of the files for this plugin and I thought I had located the correct code to adjust the width of the username and password box, but when I change the values to something smaller (or even bigger) nothing happens to the appearance on the login page, and I just wondered if anyone knows what piece of code I might have to change to resolve this issue.

The plugin file that I’m trying to change is: theme-my-login/templates/login-form.php

and the code that I’m trying to change is:

<input type=”text” name=”log” id=”user_login<?php $template->the_instance(); ?>” class=”input” value=”<?php $template->the_posted_value( ‘log’ ); ?>” size=”20″ />
</p>
<p>
<label for=”user_pass<?php $template->the_instance(); ?>”><?php _e( ‘Password’, ‘theme-my-login’ ) ?></label>
<input type=”password” name=”pwd” id=”user_pass<?php $template->the_instance(); ?>” class=”input” value=”” size=”20″ />
</p>

========

The value=”” size=”xx” would have been the most obvious choice but altering these values doesn’t seem to make any difference to the form boxes extending beyond the side panel of my page.

Any help, pointers or suggestions would be very much appreciated.

Kind Regards,
Wayne