signecane header.php

<?php
/**
 * The template for displaying the header
 *
 * Displays all of the head element and everything up until the "site-content" div.
 *
 * @package WordPress
 * @subpackage Twenty_Fifteen
 * @since Twenty Fifteen 1.0
 */
?><!DOCTYPE html>
<html <?php language_attributes(); ?> class="no-js">
<head>
    <meta charset="<?php bloginfo( 'charset' ); ?>">
    <meta name="viewport" content="width=device-width">
    <link rel="profile" href="http://gmpg.org/xfn/11">
    <link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
    <!--[if lt IE 9]>
    <script src="<?php echo esc_url( get_template_directory_uri() ); ?>/js/html5.js"></script>
    <![endif]-->
    <script>(function(){document.documentElement.className='js'})();</script>
    <?php wp_head(); ?>

</head>

<body <?php body_class(); ?>>
<div id="page" class="hfeed site">
    <a class="skip-link screen-reader-text" href="#content"><?php _e( 'Skip to content', 'twentyfifteen' ); ?></a>

    <div id="sidebar" class="sidebar">
        <header id="masthead" class="site-header" role="banner">
            <div class="site-branding">


                <!-- Begin custom header titles -->
                <?php
                    // Default title for front page and single pages
                    if ( is_front_page() && is_home() || is_page() ) : ?>
                        <h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></h1>

                    <?php
                    // Default description
                    $description = get_bloginfo( 'description', 'display' );
                    if ( $description || is_customize_preview() ) : ?>
                        <p class="site-description"><?php echo $description; ?></p>
                    <?php endif; ?>

                    <?php else : ?>

                    <!-- Blog page, category and archive title -->
                    <h1 class="site-title"><a href="<?php echo esc_url( home_url( '/blog' ) ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home">A Common Year</a></h1>

                    <?php
                    // Single blog post page description
                    $description = get_bloginfo( 'description', 'display' );
                    if ( $description || is_customize_preview() ) : ?>
                        <p class="site-description">Daily blog of 365 science stories</p>
                    <?php endif; endif;
                ?>
                <!-- End custom header titles -->


                <button class="secondary-toggle"><?php _e( 'Menu and widgets', 'twentyfifteen' ); ?></button>
            </div><!-- .site-branding -->
        </header><!-- .site-header -->

        <?php get_sidebar(); ?>
    </div><!-- .sidebar -->

    <div id="content" class="site-content">