CSS и PHP нужна помощь - Вопросы по CSS

<?php if ($this->countModules( 'review-1 and review-2 and review-3 and review-4' )) {
	$reviewclass = 'bg';
} else {
	$reviewclass = 'nobg';
}?>

<div class="<?php echo $reviewclass; ?>">

 <?php if ($this->countModules( 'review-1 and review-2 and review-3 and review-4' )) {

.clearfix:before,
.clearfix:after {
  display: table;
  content: " ";
}

.clr, .clear {clear:both; content:""; display:block; height:0; font-size:0; visibility:hidden;}

.clnt {display:inline-block; width:50%; vertical-align:top;}

…</div><div class="custom clnt">…

function modChrome_[b]reviev[/b]($module, &$params, &$attribs)
{
	$headerLevel = isset($attribs['headerLevel'])? (int) $attribs['headerLevel'] : 3;
	if (!empty ($module->content)) :
		echo '<div class="mycustomdiv'.$params->get('moduleclass_sfx').'">';
			if ($module->showtitle) :
				echo '<div class="mycustomdivtitle"><h3>'.$module->title.'</h3></div>';
			endif;
			echo $module->content;
		echo '</div>';
	endif;
}