azabu

Hi,
Now you can use Facebook official plugin, just put the comments.
Then use css below

.fb-comments span {
    width: 100% !important;
}
.fb-comments iframe {
    width: 100% !important;
}

Regards,

Hi,

You can use this code to your php.

<div class="fb-comments"data-href="<?php the_permalink(); ?>" data-num-posts="2" mobile="false"></div>
<style>.fb-comments, .fb-comments iframe[style], .fb-like-box, .fb-like-box iframe[style] {width: 100% !important;}
.fb-comments span, .fb-comments iframe span[style], .fb-like-box span, .fb-like-box iframe span[style] {width: 100% !important;}
</style>

It can be help you 😉