index.php

<?php get_header(); ?>
	<div class="container">
		<div class="row">
			<div class="col-lg-9 col-md-9 col-sm-9 col-9">
				<div class="content">
					<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
					<?php get_template_part( 'content', get_post_format() ); ?>
					<?php endwhile; else: ?>
  					<p><?php _e('Sorry, no posts matched your criteria.'); ?></p>
 					<?php endif; ?>
					<div id="nav-post"><?php posts_nav_link('  ', __('<button class="button">« Neuere Beiträge</button>'), __('<button class="button">Ältere Beiträge »</button>')); ?></div>
				</div> <!-- /.content -->
			</div> <!-- /.col-lg-9 /.col-md-9 /.col-sm-9 /.col-9 -->
			<div class="col-lg-3 col-md-3 col-sm-3 col-3">Hier kommt die Sidebar hin</div><!-- /.col-lg-3 /.col-md-3 /.col-sm-3 /.col-3 -->
		</div> <!-- /.row -->
	</div> <!-- /.container -->
<?php get_footer(); ?>