<a href="#" data-menu="user_calendar" id="open_user_calendar" style="display:none"></a>
<div id="user_calendar" class="menu menu-box-modal menu-box-detached rounded-m menu-active" style="height:auto; width:90%">
    <div id="user_calendar_content" style="padding: 20px;">

    </div>
</div>