Sidebar Stats style

http://ift.tt/1umGf4e how can i make the lines from begin to end, not just in the middle like in the screen, on the screen is left and right nothing i want that the lines fill that all, could you tell me how?

heres the code:

<style>.sr{position:absolute;right:15px;}</style><if test="showTotals:|:$this->settings['show_totals']">                    <div class="ipsSideBlock clearfix __xXtwist352statistics">    
            <h3 id="anonymous_element_352">Forum Quick Stats</h3>                <div class="_sbcollapsable">                   <ul class='ipsList_data sb_statistics clearfix'>                     <li class='clearfix'>                       <span class='sl'>{$this->lang->words['total_posts']}:</span>                       <span class='sr'>{$stats['info']['total_posts']}</span>                     </li>                     <li class='clearfix'>                       <span class='sl'>{$this->lang->words['total_members']}:</span>                       <span class='sr'>{$stats['info']['mem_count']}</span>                     </li>                      <li class='clearfix'>                       <span class='sl'>{$this->lang->words['newest_member']}:</span>                       <span class='sr'>{IPSMember::makeProfileLink( $stats['info']['last_mem_name'], $stats['info']['last_mem_id'], $stats['info']['last_mem_seo'], 'value' )}</span>                     </li>                     <li class='clearfix' data-tooltip='{$stats['info']['most_time']}'>                       <span class='sl'>{$this->lang->words['online_at_once']}:</span>                       <span class='sr'>{$stats['info']['most_online']}</span>                     </li>                                                                                 </ul>            </div>        </div>    </if>

Thanks!