smooth scrolling

pass/public/styles/index.less

@@ -3,6 +3,10 @@
 @breakpoint-hero-medium: 800px;
 @breakpoint-hero-small: 500px;
 
+html {
+  scroll-behavior: smooth;
+}
+
 #hero {
   color: white;
   background-color: @color-main;

pass/views/index.ejs

@@ -21,7 +21,7 @@
           </button>
         </div>
       </div>
-      <a class="call-to-action" href="#">So funktioniert es</a>
+      <a class="call-to-action" href="#how-it-works">So funktioniert es</a>
     </div>
   </div>
   <div id="advantages">