[Theme: Modern Estate] – Sidebar Text Title Size / Width

Hi, I’m using the Modern Estate Theme on WP 3.8 and I’m trying to change the font size of the title text over the sidebar. If you go to cspreo.com, you’ll see why.

I went to the editor and the only thing about the primary sidebar I can find is in theme-functions.php. It says this:

// Primary sidebar
	register_sidebar( array(
		'name'          => __( 'Primary Sidebar', 'modern-estate' ),
		'id'            => 'primary-sidebar',
		'description'   => __( 'This widget area is the primary widget area.', 'modern-estate' ),
		'before_widget' => '<section id="primary-sidebar-%1$s" class="widget primary-sidebar primary-sidebar-widget %2$s">',
		'after_widget'  => '<section class="clear"></section></section>',
		'before_title'  => '<h3 class="widgettitle widget-title primary-sidebar-widget-title">',
		'after_title'   => '</h3>',

If I change the ‘before_title’ and ‘after_title’ to a different header size, nothing happens. I’m at a loss here, I just want the title to not go to the next line. An alternate fix would be to widen the sidebar, but I’m not sure where that is located. Also note, the CSS file in editor is blank.

Any help in the right direction is appreciated, thanks.