anchor.diff:              thead
                   tr
                       th(style='width:90%') Name
  -                    th Time limit
                       th Rankings
                       if not IN_CONTEST
                           th(style='width:15%')
  
positive.code:                                     if contest.is_external
                                          .external-notice
                                              a(href='/about#external-contests') External contest
                          td
                              if contest.time_limit
                                  | #{contest.time_limit|timedelta:"simple-no-seconds"}
  
negative.code:         table.contest-list.table.striped
              thead
                  tr
                      th Name
              tbody
                  each contest in future_contests
                      tr
  