Form styling issue in custom header widget – Hopefully a simple CSS fix?

Hello. A year or two ago (don’t recall exactly when), you guys helped me create a custom header widget area for a credit union bank client of mine requiring a customer log-in at the top of their site above the nav bar. The customization only required a small snippet of code added to the end of the functions.php file, which then allowed me to add content to this area via the widgets dashboard.
This is the code we added:

/*
 *  Custom header widget for CAPE log-in form
 */
add_action( 'ava_main_header', 'enfold_customization_header_widget_area' );
function enfold_customization_header_widget_area() {
	dynamic_sidebar( 'header' );
}

I’m currently using a Custom HTML widget to display the client logo on the left and form on the right with column shortcodes. This has worked great to this point, but now the bank is changing systems and has provided me with a new form code snippet to replace the one that’s currently been in that space. The issue is that now the new form’s formatting gets thrown off when placed inside the widget. The “Login ID” text and “Submit” button get pushed down in the vertical space of the form’s table. I’m thinking this is probably a simple CSS fix, but I’m currently unable to sort it out.

I tested the form code on a regular page and it formats just fine (all elements align nicely). But when placed in the header widget, the formatting breaks. I’m hoping there’s an easy CSS fix for this and you might be able to help me out. They need this new form to go live tomorrow, so I’m hopeful for a quick resolution. I’ve provided links to the staging site in the private content section below, along with access credentials in case you need to check that.

Thank you so much,
Chris