Here is the step by step process to make the left Sidebar in Twenty Thirteen Puzzle !!
1) Edit sidebar.php and add the highlighted red part:
<?php
if ( is_active_sidebar( 'sidebar-2' ) ) : ?>
<div id="tertiary" class="sidebar-container" role="complementary">
<div class="sidebar-inner">
<div class="widget-area">
<?php dynamic_sidebar( 'sidebar-2' ); ?>
</div><!-- .widget-area -->
</div><!-- .sidebar-inner -->
</div><!-- #tertiary -->
<?php endif; ?>
<?php
if ( is_active_sidebar( 'sidebar-3' ) ) : ?>
<div id="tertiary" class="sidebar-container" role="supplementary">
<div class="sidebar-inner">
<div class="widget-area1">
<?php dynamic_sidebar( 'sidebar-3' ); ?>
</div><!-- .widget-area -->
</div><!-- .sidebar-inner -->
</div><!-- #tertiary -->
<?php endif; ?>
2) Edit style.css and add the highlighted red part:
/** * 6.0 Sidebar * ----------- */ .site-main .widget-area { float: right; width: 300px; .site-main .widget-area1 { float: left; width: 150px; }
Thats it !! Enjoy !