Code not styling correctly

Hello, I hope i am not being two cheeky here, but i have 2 widgets that i have tried to merge into one.

What i have done to taken the PHP code of my widget and called functions from the WP-members widget.

So, my code checks if a user is logged in and then calls the WP-members widget code to display either the login box or the welcome message:

if (!$uData)
      {
         # display wp-members widget (login boxes)
        echo wpmem_do_sidebar();
      }

      else
      {
         ....	

	# display wp-members widget (welcome message)
	echo "<p>" . wpmem_inc_status() . "</p>";
      }

This works fine with no problems, however i cannot seem to style the wp-members code.

My homepage demonstrates how i want my login widget to show (this is the default WP-members widget):
http://www.complete-models.com
The text boxes are set to a % to stop it overflowing the sidebar (which it does as standard).

However if you look at the new page:
http://complete-models.com/member-options/inbox/

The text box overflows again, almost as if it forgets the WP-members CSS i added previously.

I do not understand why it is doing this as i am calling the WP-members functions directly – surely they should retain all stlying ?

I hope this makes sence

https://wordpress.org/plugins/wp-members/