graphical_slider_tool.html

<div align="center" id="${element_id}" class="${element_class}">
    <!-- hidden field to read configuration json from -->
    <div class="${element_class}" id="${element_id}_json" style="display: none;">
        ${configuration_json}
    </div>

    <!-- main xml with marked places for sliders, numbers, and plot -->
    ${gst_html}
</div>