    <div class="loader">Loading...</div>
        </div>
        <div class="graph-container">
            <svg id="operator-canvas"></svg>
        </div>

        <div id="operator-detail-modal" class="modal" tabindex="-1" role="dialog">
            <div class="modal-dialog modal-lg" role="document">
                <div class="modal-content">
                    <div id="operator-detail" class="container"></div>
                </div>
            </div>
        </div>
    </div>

</div> <!-- /container -->