fix block with hidden title

assets/sass/_theme/blocks/key_figures.sass

@@ -10,7 +10,7 @@
             @include grid(4, desktop)
         &.odd-items
             @include grid(3, desktop)
-    .top + ul
+    .top:not(.hidden) + ul
         margin-top: $spacing2
     dl
         margin-bottom: 0

assets/sass/_theme/blocks/pages.sass

@@ -173,7 +173,7 @@
                         display: block
                         grid-column: 1 / 8
                         margin-bottom: 0
-                    .top + .description
+                    .top:not(.hidden) + .description
                         grid-column: 1 / 8
                         grid-row: 2 / 3
                     // Default behavior (without page description)