Fix for an issue with Genesis 2.0 where custom header CSS is overridden, resulting in a misaligned header. This function replaces the genesis_custom_header_style function with your own. Set your custom header CSS in line 35, then add this function to functions.php or to a plugin. This code was written by Genesis Community Forum member CyBorge, a…

mh_custom_header_style

/*———- MDB - CUSTOMIZE HEADER OUTPUT ————— */
remove_action( 'wp_head', 'genesis_custom_header_style' );

add_action( 'wp_head', 'mh_custom_header_style' );

function mh_custom_header_style() {

  //* Do nothing if custom header not supported
	if ( ! current_theme_supports( 'custom-header' ) )
		return;

	//* Do nothing if user specifies their own callback
	if ( get_theme_support( 'custom-header', 'wp-head-callback' ) )
		return;

	$output = '';

	$header_image = get_header_image();
	$text_color   = get_header_textcolor();

	//* If no options set, don't waste the output. Do nothing.
	if ( empty( $header_image ) && ! display_header_text() && $text_color === get_theme_support( 'custom-header', 'default-text-color' ) )
		return;

	$header_selector = get_theme_support( 'custom-header', 'header-selector' );
	$title_selector  = genesis_html5() ? '.custom-header .site-title'       : '.custom-header #title';
	$desc_selector   = genesis_html5() ? '.custom-header .site-description' : '.custom-header #description';

	//* Header selector fallback
	if ( ! $header_selector )
		$header_selector = genesis_html5() ? '.custom-header .site-header' : '.custom-header #header';

	//* Header image CSS, if exists
	if ( $header_image )
		$output .= sprintf( '%s { background: url(%s) no-repeat center top !important; }', $header_selector, esc_url( $header_image ) );

	//* Header text color CSS, if showing text
	if ( display_header_text() && $text_color !== get_theme_support( 'custom-header', 'default-text-color' ) )
		$output .= sprintf( '%2$s a, %2$s a:hover, %3$s { color: #%1$s !important; }', esc_html( $text_color ), esc_html( $title_selector ), esc_html( $desc_selector ) );

	if ( $output )
		printf( '<style type="text/css">%s</style>' . "\n", $output );

}
/*———— END HEADER FIX MDB ———————————-*/