how to style a particular wordpress sidebar widget - wordpress-theming

Question

I have sidebar widgets visible when I open a post in my website. But since the website is bilingual, some of them are supposed to be right aligned while others left aligned.
Is this possible? If I knew which function is generating the content for sidebar HTML, perhaps I could achieve this but I don't know where that function is, if it existed.

Answer 1

umm... kinda got it working.
I made the following changes to the file:
wp-includes\widgets\class-wp-widget-recent-posts.php
It had the following code:
<ul>
<?php while ( $r->have_posts() ) : $r->the_post(); ?>
<li>
<?php get_the_title() ? the_title() : the_ID(); ?>
<?php if ( $show_date ) : ?>
<span class="post-date"><?php echo get_the_date(); ?></span>
<?php endif; ?>
</li>
<?php endwhile; ?>
</ul>
I then changed it to:
<ul>
<?php while ( $r->have_posts() ) : $r->the_post(); ?>
<?php
if (strpos(get_the_title(), 'a') !== false) {
echo '<li class="engwidget">';
}else{
echo '<li class="localwidget">';
}
?>
<?php get_the_title() ? the_title() : the_ID(); ?>
<?php if ( $show_date ) : ?>
<span class="post-date"><?php echo get_the_date(); ?></span>
<?php endif; ?>
</li>
<?php endwhile; ?>
</ul>
I've achieved what I wanted but no idea if this is by any means a right way to do so.