anchor.diff:      hr
       .row
           .col-xs-12.col-sm-10.col-sm-offset-1.col-md-8.col-md-offset-2.text-center
  -            img.img-responsive.img-center(src='http://i.imgur.com/YqZqTN6g.jpg')
  +            a(href="//www.namecheap.com/?aff=102130" onClick="ga('send', 'event', 'Shop', 'clicked', 'Namecheap domain');")
  +              img.img-responsive.img-center(src='http://i.imgur.com/YqZqTN6g.jpg')
               h3 Buy some affordable domain names
               p Namecheap gives our community a 15% commission on your first purchase.
               a.btn.btn-cta.signup-btn.btn-block(href="//www.namecheap.com/?aff=102130" onClick="ga('send', 'event', 'Shop', 'clicked', 'Namecheap domain');") Get your domain name
  
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      .row
          .col-xs-12.col-sm-10.col-sm-offset-1.col-md-8.col-md-offset-2.text-center
              img.img-responsive.img-center(src='//i.imgur.com/FNFqn9Tg.jpg')
              h3 Free Code Camp laptop stickers
              h4 Get 2 for only $5, with free shipping anywhere!
              p These durable 2" (5 cm) stickers sport a matte finish, and look great anywhere - especially on your laptop.
              html.
                  <form action="//www.paypal.com/cgi-bin/webscr" onSubmit="ga('send', 'event', 'Shop', 'clicked', 'Freecodecamp sticker');" method="post" target="_blank">
                  <input type="hidden" name="cmd" value="_s-xclick">
                  <input type="hidden" name="hosted_button_id" value="R9AGYKJUCU37N">
                  <input type="submit" class="btn btn-cta signup-btn btn-block" name="submit" value='Get these with PayPal or a Credit Card'>
                  <img alt="" border="0" src="//www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
                  </form>
  
      hr
      .row
          .col-xs-12.col-sm-10.col-sm-offset-1.col-md-8.col-md-offset-2.text-center
              img.img-responsive.img-center(src='http://i.imgur.com/ATDiWMl.png')
              h3 Get 2 free audiobooks through Audible
              p Audible gives our community $5 when you you sign up for a free trial.
              p You get two free audiobooks immediately. You can cancel any time and still keep your audiobooks.
  
negative.code:     hr
      .row
          .col-xs-12.col-sm-10.col-sm-offset-1.col-md-8.col-md-offset-2.text-center
              a(href="//m.do.co/c/ba8a71773373" target='_blank' onClick="ga('send', 'event', 'Shop', 'clicked', '$10 Digital Ocean credit');")
                img.img-responsive.img-center(src='//i.imgur.com/BTtb8P0g.jpg')
              h3 Get $10 in credit for your own Digital Ocean server
              p Digital Ocean gives our community $25 in credit after you spend $25.
              a.btn.btn-cta.signup-btn.btn-block(href="//m.do.co/c/ba8a71773373" target='_blank' onClick="ga('send', 'event', 'Shop', 'clicked', '$10 Digital Ocean credit');") Claim your $10 credit
  