content-onecat.php

<?php
/**
 * The default template for displaying one category excerpt
 *
 * @package WordPress
 * @subpackage Twenty_Eleven
 * @since Twenty Eleven 1.0
 */
?>

    <article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
        <header class="entry-header">
            <h3 class="entry-title"><a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h3>

        <div class="entry-summary">
            <?php the_excerpt(); ?>
        </div><!-- .entry-summary -->

        </footer><!-- #entry-meta -->
    </article><!-- #post-<?php the_ID(); ?> -->