Tag page

Hi, i wanna make a page with 4 collumns with an overview of my tags
i find a blog here and there is an example of code but i do not become the 4 columns, i have a long list of tags but not in 4 columns.
i have made a template-page in my theme but can somebody help me where to do something to become the 4 columns?

here is the code where i´m wrestling with…

<?php
        // Make an array from A to Z.
        $characters = range('a','z');
        // Check if $characters exists and ensure that it is an array.
        if( $characters && is_array( $characters ) ) {
            foreach( $characters as $index=>$character ) {
                // Get the tag information for each characters in the array.
                $tags = get_tags( array('name__like' => $character, 'order' => 'ASC') );
                // Output a wrapper so that our arrays will be contained in 4 columns.
                if ($index != 0 && $index % 4 == 0)  {
                    $html = "<div class='post-tags clearfix' style='clear:left;'>";
                } else {
                    $html = "<div class='post-tags clearfix'>";
                }
                // Output the character and use it as the title.
                $html .= "<h3 class='title'>{$character}</h3>";
                // Output the markup for each tag found for each character.
                if ($tags) {
                    $html .= "<ul>";
                    foreach ( (array) $tags as $tag ) {
                        $tag_link = get_tag_link($tag->term_id);
                        $html .= "<li class='tag-item'>";
                        if ( $tag->count > 1 ) {
                            $html .= "<p><a href='{$tag_link}' title='View all {$tag->count} articles with the tag of {$tag->name}' class='{$tag->slug}'>";
                        } else {
                            $html .= "<p><a href='{$tag_link}' title='View the article tagged {$tag->name}' class='{$tag->slug}'>";
                        }
                        $html .= "{$tag->name}</a><span>#{$tag->count}</span></p>";
                        $html .= "</li>";
                    }
                    $html .= '</ul>';
                }
                $html .= '</div>';
                // Output the markup for the current character.
                echo $html;
                // Increment the index by 1.
                $index++;
            }
        }
    ?>

help will be appriciated