ANA

</p>
function mytraining_widgets_init() {
  register_sidebar( array(
    'name' => 'Header Sidebar',
    'id' => 'header_sidebar',
    'before_widget' => '<div id="mytraining-widget">',
    'after_widget' => '</div>',
    'before_title' => '<h2>',
    'after_title' => '</h2>', ) );
}
add_action( 'widgets_init', 'mytraining_widgets_init' );
<p>