anchor.diff:  doctype html
   html.no-js
     head
  -    title Sample ASCE Conference Site
  +    title Landing Page | Sample ASCE Conference Site
       meta(charset="utf-8")
       meta(name="viewport" content="width=device-width, initial-scale=1")
       link(rel="stylesheet" href="styles/conf.css")
  
positive.code:           p.
              Learn about the impacts of water sustainability and
              the importance of interdisciplinary design approaches.
          section#future
            hgroup
              h2 ASCE Convention 2017
              h3 TBD
            //- ul
            //-   li curabitur vel
            //-   li augue vel est venenatis
  
negative.code:           li: a.c-LandingLink(href="") Exhibit
            li: a.c-LandingLink(href="") Contact
      main
        section#current(itemscope="" itemtype="http://schema.org/Event")
          div.c-Hero
            h2.c-ConfNameCurrent(itemprop="name") ASCE 2016
            meta(itemprop="eventStatus" content="EventScheduled")
            p.c-ConfLocation(itemprop="location" itemscope="" itemtype="http://schema.org/PostalAddress")
              span(itemprop="addressLocality") Portland, 
              span(itemprop="addressRegion"): abbr(title="Oregon") OR
            p.c-ConfDates
              time(datetime="2016-09-28" itemprop="startDate") Sep 28
              | &ndash;
              time(datetime="2016-10-01" itemprop="endDate") Oct 1
            p.c-ConfTagline Mainstremaing green infrastructure.
            p.c-HeroButtonContainer
              a.c-Button.c-Button--hero(href="2016/") Get Details
          ul.o-ListBare.c-ElevatorButtonContainer
            li: a.c-Button(href="") Registor Today
            li: a.c-Button(href="") Become A Sponsor
            li: a.c-Button(href="") Submit Papers
          p.c-ElevatorPitch(itemprop="description").
            Elevator pitch. One paragraph. Sentence case.
            Join civil engineering professionals from around the world at
            this ASCE flagship event. Network with peers, earn PDHs, and
            expand your knowledge base.
        div
          section#past(itemscope="" itemtype="http://schema.org/Event")
            h2(itemprop="name") ASCE Convention 2015
              span(itemprop="addressLocality") Portland, 
              span(itemprop="addressRegion"): abbr(title="Oregon") OR
            meta(itemprop="eventStatus" content="EventScheduled")
            p(itemprop="location" itemscope="" itemtype="http://schema.org/PostalAddress")
              span(itemprop="addressLocality") New York, 
              span(itemprop="addressRegion"): abbr(title="New York") NY
            //- ul
            //-   li lorum ipsum
            //-   li dolor sit amet
  