anchor.diff:          <div class='overview_graph__tabs'>
             <ul>
               <li class='graph_tab selected' data-slug='total_loss'>
  -              <a href='#' class='overview_graph__link'>Loss<span>vs</span>Gain</a>
  +              <a href='#' class='overview_graph__link'>Tree cover loss</a>
               </li>
   
               <li class='graph_tab' data-slug='percent_loss'>
  
positive.code:     <div class='overview_graph__years'></div>
      <div class='overview_graph__axis'>Tree cover extent 2000</div>
  
      <h1 class='overview_graph__title'>Countries with greatest tree cover loss <sup>(2001-2012)</sup></h1>
  
      <div class='countries_list'>
        <div class='countries_list__header'>
  
negative.code: 
          <div class='overview_graph__area'>
            <div class='chart total_loss'>
            </div>
  
            <div class='chart percent_loss'>
  