Element style not allowed as child of element div in this context.

Hello,

I have a problem in validator.w3.org.

I have an error with the message “Element style not allowed as child of element div in this context.”

The error is from template.php

<div class=”opal-footer-profile clearfix”>
<?php
if (function_exists(‘kc_do_shortcode’)){
$raw_content = kc_raw_content( $footer_data->ID );
echo kc_do_shortcode( $raw_content );
}else{
// Use default method if KC is deactived
echo do_shortcode ($footer_data->post_content);
}
?>
</div>

What should i do?