Multiple instances of Featured Image Thumbnail As A Background On Homepage

Solution was to remove the style tag and and write the background styling right into the .featured_box div. Thank you to @ckhicks on Twitter for the solution, and thank you everyone else for trying to help out too <3

 <?php $background = wp_get_attachment_image_src( get_post_thumbnail_id( $page->ID ), 'full' ); ?>
    <a href="https://wordpress.stackexchange.com/questions/160701/<?php the_permalink(); ?>"><div class="featured_box" style="background: url('<?php echo $background[0]; ?>') no-repeat center center;">
    <h2><?php the_title(); ?></h2>
    </div></a>