This is the HTML code:
<?php responsive_widgets_before(); // above widgets container hook ?>
<div id="widgets" class="<?php echo implode( ' ', responsive_get_sidebar_classes() ); ?>">
<?php responsive_widgets(); // above widgets hook ?>
<?php if (!dynamic_sidebar('main-sidebar')) : ?>
<div class="widget-wrapper">
<div class="widget-title"><?php _e('In Archive', 'responsive'); ?></div>
<ul>
<?php wp_get_archives( array( 'type' => 'monthly' ) ); ?>
</ul>
</div><!-- end of .widget-wrapper -->
<?php endif; //end of main-sidebar ?>
<?php responsive_widgets_end(); // after widgets hook ?>
</div><!-- end of #widgets -->
<?php responsive_widgets_after(); // after widgets container hook ?>
I understand a little HTML, but this is too complex.