anchor.diff:    <ul class='sources'>
       <li id='fires' class='source-item'>
         <div class='source_header'>
  -        <strong class='source_title'>NASA active fires</strong>
  -        <i class='expand_arrow'></i>
  -        <em class='source_description'>(daily, 1km, global)</em>
  +        <strong class='source_title'>Active fires</strong>
  +        <i class='expand_arrow'></i>
  +        <em class='source_description'>(past 7 days, 1km, global, NASA)</em>
         </div>
   
         <div class='source_body'>
  
positive.code:       <div class='source_header'>
          <strong class='source_title'>QUICC alerts</strong>
          <i class='expand_arrow'></i>
          <em class='source_description'>(quarterly, 5km, &lt;37 degrees north)</em>
        </div>
  
        <div class='source_body'>
  
negative.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, WRI/CGD)</em>
        </div>
  
        <div class='source_body'>
  