bootstrap according in wordpress

<div class="col-md-9">
        <?php
        $args = array(
            'post_type' => 'acordion',
            'posts_per_page' => '-1',
            'order' => 'ASC'
        );
        $the_query = new WP_Query($args);
        ?>
        <?php $c = 0; ?>

        <div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">

            <?php
            if ($the_query->have_posts()) : while ($the_query->have_posts()) : $the_query->the_post();
                    $c++;
                    ?>

                    <div class="panel panel-default">
                        <div class="panel-heading" role="tab" id="heading-<?php the_ID(); ?>">
                            <h4 class="panel-title">
                                <a data-toggle="collapse" data-parent="#accordion" href="#collapse-<?php the_ID(); ?>" aria-expanded="true" aria-controls="collapse-<?php the_ID(); ?>">
                                    <?php the_title(); ?>
                                </a>
                            </h4>
                        </div>

                        <div id="collapse-<?php the_ID(); ?>" class="panel-collapse collapse <?php if ($c == 1) echo 'in'; ?>" role="tabpanel" aria-labelledby="heading-<?php the_ID(); ?>">
                            <div class="panel-body">
                                <?php the_excerpt(); ?>
                            </div>
                        </div>
                    </div>


                    <?php
                endwhile;
            else:
                ?>

                <p>Please fill out some questions.</p>

            <?php endif; ?>
            <?php wp_reset_postdata(); ?>
        </div>
    </div>


/****************************post type ***************************************************/

function mamun_theme_custom_accordion() {

    register_post_type('acordion', array(
        'public' => true,
        'lable' => 'Accordion',
        'labels' => array(
            'name' => 'Accordions',
            'singular_name' => 'Accordion',
            'add_new' => 'Add New Accordion',
        ),
        'supports' => array('title', 'editor', 'excerpt',),
    ));
}

add_action('init', 'mamun_theme_custom_accordion');