anchor.diff:        <div class='source_header'>
           <strong class='source_title'>Terra-i Alerts</strong>
           <i class='expand_arrow'></i>
  -        <em class='source_description'>(monthly, 250m, Latin America)</em>
  +        <em class='source_description'>(monthly, 250m, Latin America, CIAT)</em>
         </div>
   
         <div class='source_body'>
  
positive.code:       <div class='source_header'>
          <strong class='source_title'>Forma alerts</strong>
          <i class='expand_arrow'></i>
          <em class='source_description'>(monthly, 500m, humid tropics)</em>
        </div>
  
        <div class='source_body'>
  
negative.code: 
      <li id='umd_tree_loss_gain' class='source-item first'>
        <div class='source_header'>
          <strong class='source_title'Tree cover loss</strong>
          <i class='expand_arrow'></i>
          <em class='source_description'>(annual, 30m, global, Hansen/UMD/Google/USGS/NASA)</em>
        </div>
  
        <div class='source_body'>
  