Responsive Video Size

Hey guys,

I can’t get the video scaling to be responsive for the life of me. What am I doing wrong?!?!

/*get_the_post_video*/
<?php
        $args = array(
            'post_type' => 'projects',
            'posts_per_page' => '-1'
        );
        $website_the_query = new WP_Query( $args );
        while ( $website_the_query->have_posts() ) :
        	$website_the_query->the_post();
                $website_featured_video = get_the_post_video( $post_id, $responsive);
			
        ?>

/*insert into html*/

<?php  if ( has_post_video( $post_id ) ) { ?>
     
     <div class="featured_video" ><?php echo $website_featured_video; ?></div>

<?php } ?>