I want to display latest post in marquee [closed]

by

You are using a local loop, so template functions won’t behave as expected without a $post parameter:

<marquee>
    <?php $latest = get_posts('numberposts=5&cat=13'); foreach( $latest as $_post ) : ?>
    
        <a href="<?php the_permalink( $_post ); ?>"><?= get_the_title( $_post ); ?></a> &nbsp; &nbsp;

    <?php endforeach; ?>
</marquee>