    <div class="accordion-item">
      <h2 class="accordion-header">
        <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#flush-heading-Board" aria-expanded="false" aria-controls="flush-heading-Board"><b>게시판관리</b></button>
      </h2>
      <div id="flush-heading-Board" class="accordion-collapse collapse show" aria-labelledby="flush-heading-Board">
        <div class="accordion-item">
          <h2><a href="/admin/boardconfig"><?= CLASS_ICONS['BOARD_CONFIG'] ?>설정 관리</a></h2>
        </div>
        <div class="accordion-item">
          <h2><a href="/admin/board"><?= CLASS_ICONS['BOARD'] ?>게시글 관리</a></h2>
        </div>
      </div>
    </div>