<?php  if(is_active_sidebar( 'offcanvas_sidebar' )){ ?>
  <div class="hidden-xs hidden-sm">
    <div class="canvas-menu gva-offcanvas">
      <a class="dropdown-toggle" data-canvas=".default" href="#"><i class="gv-icon-103"></i></a>
    </div>
    <div class="gva-offcanvas-content default">
      <div class="close-canvas"><a><i class="gv-icon-8"></i></a></div>
      <div class="wp-sidebar sidebar">
        <?php dynamic_sidebar( 'offcanvas_sidebar' ); ?>  
      </div>
    </div>
  </div>
<?php } ?>