anchor.diff:  
        <li id='forestgain' class='source-item '>
         <div class='source_header'>
  -        <strong class='source_title'>University of Maryland/Google tree cover gain</strong>
  -        <i class='expand_arrow'></i>
  -        <em class='source_description'>(12 years, 30m, global)</em>
  +        <strong class='source_title'>Tree cover gain</strong>
  +        <i class='expand_arrow'></i>
  +        <em class='source_description'>(12 years, 30m, global, Hansen/UMD/Google/USGS/NASA)</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:       <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, CIAT)</em>
        </div>
  
        <div class='source_body'>
  