1, // size of least used tag
'largest' => 1, // size of most used tag
'unit' => 'em', // unit for sizing the tags
'number' => 25, // displays at most 45 tags
'orderby' => 'name', // order tags alphabetically
'order' => 'ASC', // order tags by ascending order
'taxonomy' => 'post_tag' // you can even make tags for custom taxonomies
) ); ?>
