H1 header tags on Primary menu

@photogold: For that, you’ll need to create a child theme. You can find more details on creating child theme HERE. Then in your child theme’s functions.php add the following code:

function clean_box_primary_menu() {
    $options  = clean_box_get_theme_options();
	?>
    <div id="fixed-header-top">
        <div class="wrapper">
            <div id="mobile-primary-menu" class="mobile-menu-anchor fixed-primary-menu">
                <a href="#mobile-primary-nav" id="primary-menu-anchor" class="genericon genericon-menu">
                    <span class="mobile-menu-text screen-reader-text">
                        <?php esc_html_e( 'Menu', 'clean-box' ); ?>
                    </span>
                </a>
            </div><!-- #mobile-primary-menu -->

            <?php
                $logo_alt = ( '' != $options['logo_alt_text'] ) ? $options['logo_alt_text'] : get_bloginfo( 'name', 'display' );

                if ( isset( $options[ 'logo_icon' ] ) &&  $options[ 'logo_icon' ] != '' &&  !empty( $options[ 'logo_icon' ] ) ){
                     echo '<div id="logo-icon"><a href="' . esc_url( home_url( '/' ) ) . '" title="' . esc_attr( get_bloginfo( 'name', 'display' ) ) . '" rel="home">
                        <img src="' . esc_url( $options['logo_icon'] ) . '" alt="' . esc_attr( $logo_alt ). '">
                    </a></div>';
                }
            ?>

           <nav class="nav-primary search-enabled" role="navigation">
                <div class="screen-reader-text skip-link"><a href="#content" title="<?php esc_attr_e( 'Skip to content', 'clean-box' ); ?>"><?php _e( 'Skip to content', 'clean-box' ); ?></a></div>
                <?php
                    if ( has_nav_menu( 'primary' ) ) {
                        $clean_box_primary_menu_args = array(
                            'theme_location'    => 'primary',
                            'menu_class'        => 'menu clean-box-nav-menu',
                            'container'         => false
                        );
                        wp_nav_menu( $clean_box_primary_menu_args );
                    }
                    else {
                        wp_page_menu( array( 'menu_class'  => 'menu clean-box-nav-menu' ) );
                    }

                    ?>
            </nav><!-- .nav-primary -->

            <div id="header-toggle">
                <a href="#header-toggle-sidebar" class="genericon"><span class="header-toggle-text screen-reader-text"><?php _e( 'Show Header Sidebar Content', 'clean-box' ); ?></span></a>
            </div>

            <div id="header-toggle-sidebar" class="widget-area displaynone" role="complementary">
                <?php if ( is_active_sidebar( 'header-toggle' ) ) { ?>
                    <?php dynamic_sidebar( 'header-toggle' ); ?>
                <?php
                }
                else { ?>
                    <section class="widget widget_search" id="header-serach">
                        <?php get_search_form(); ?>
                    </section>

                    <?php

                    if ( '' != ( $clean_box_social_icons = clean_box_get_social_icons() ) ) { ?>
                        <section class="widget widget_clean_box_social_icons" id="header-social-icons">
                            <div class="widget-wrap">
                                <?php echo $clean_box_social_icons; ?>
                            </div>
                        </section>
                    <?php
                    }
                }
                ?>
            </div><!-- #header-toggle-sidebar -->
        </div><!-- .wrapper -->
    </div><!-- #fixed-header-top -->
    <?php
}

Regards,
Mahesh

@photogold: Yes, same code.

Regards,
Mahesh