When displaying more than one filter above one another, the height calculations can in some cases where no products are found, display with the names of the lower filters overlapping the above.
The file views->product->filter.php should be amended. Lines:
if(!empty($filters[$count]->filter_height)){
$height='height:'.$filters[$count]->filter_height.'px;';
}else if(!empty($this->heightConfig)){
$height='height:'.$this->heightConfig.'px;';
}
should be
if(!empty($filters[$count]->filter_height)){
$height='min-height:'.$filters[$count]->filter_height.'px;';
}else if(!empty($this->heightConfig)){
$height='min-height:'.$this->heightConfig.'px;';
}