custom-header.php

<?php
/**
 * Implements custom header styles for Child2013.
 * See http://codex.wordpress.org/Custom_Headers
 *
 * @package WordPress
 * @subpackage Twenty_Thirteen
 * @since Twenty Thirteen 1.0
 */

function child2013_custom_header_setup() {
	$args = array(
		// Callbacks for styling the header.
		'wp-head-callback'       => 'child2013_header_style',
	);

}
add_action( 'after_setup_theme', 'child2013_custom_header_setup' );

/**
 * Styles the header text displayed on the blog.
 *
 * get_header_textcolor() options: Hide text (returns 'blank'), or any hex value.
 *
 * @since Twenty Thirteen 1.0
 */
function child2013_header_style() {
	?>
	<style type="text/css" id="twentythirteen-header-css">
	<?php
		// Has the text been hidden?
		if ( ! display_header_text() ) :
	?>
		.site-title,
		.site-description {
			position: absolute;
			clip: rect(1px 1px 1px 1px); /* IE7 */
			clip: rect(1px, 1px, 1px, 1px);
		}
	<?php

		// If the user has set a custom color for the text, use that.
		elseif ( $text_color != get_theme_support( 'custom-header', 'default-text-color' ) ) :
	?>
		.site-title,
		.site-description {
			color: #<?php echo esc_attr( $text_color ); ?>;
		}
	<?php endif; ?>
	</style>
	<?php
}

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