How add comments on a page

I have tried this but my page like this, the background must be white

I put this code

<?php //if page is split into more than one
link_pages(‘Pages: ‘, ‘
‘, ‘number’); ?>
</div>
<?php comments_template(”, true); ?>

Is dit correct to put the code
<?php comments_template(”, true); ?> ?

I have tried below and above the <?php endwhile; endif; ?>, still the same result
Also tried another plaats, still the same problem

Please help me

Thank you