Update to new logo and background for EP2021 (#1350)

* Update to new conference colors for EP2021

* Update to new logo and background for EP2021

Author: malemburg

assets/css/europython-customizations.css

@@ -45,9 +45,9 @@
     background-size: cover;
     color: white;
     min-height: 90px;
-    padding-bottom: 4em;
+/*    padding-bottom: 4em; */
 }
-.jumbotron { background: transparent; color: white; padding: 4em 0 13em 0;}
+.jumbotron { background: transparent; color: white; }
 .text-underline { text-decoration: underline; }
 
 .page { min-height: 500px; padding-bottom: 10em; padding-top: 4em}

assets/img/ep2021-background-online.jpg

@@ -31,11 +31,13 @@
         <div class='row' style='margin-top: 3em;'>
             <div class='col-md-12'>
                 Previous editions:
+                <a href='https://ep2020.europython.eu'>2020</a>
                 <a href='https://ep2019.europython.eu'>2019</a>
                 <a href='https://ep2018.europython.eu'>2018</a>
                 <a href='https://ep2017.europython.eu'>2017</a>
                 <a href='https://ep2016.europython.eu'>2016</a>
                 <a href='https://ep2015.europython.eu'>2015</a>
+                <a href='https://ep2015.europython.eu'>2014</a>
                 <a href='https://www.europython-society.org/europython'>more...</a>
             </div>
         </div>

assets/img/ep2021-favicon.png

@@ -14,7 +14,9 @@ <h5 class="card-title">Trainings &amp;
                         Workshops</h5>
                         <p class="card-text">Two days of
                         trainings.  Multiple 3 hour long sessions with
-                        experts.  <a href="{% page_url 'tickets'%}">Training tickets</a>
+                        experts.  <br/>
+                        <br/>
+                        <a href="{% page_url 'tickets'%}">Training tickets</a>
                         are sold separately.</p>
                     </div>
                 </div>