handle specific sequence

assets/sass/_theme/_utils.sass

@@ -12,9 +12,10 @@
             @content
 
 @mixin in-page-without-sidebar
-    main > .blocks &,
-    body.full-width &,
-        @content
+    @include media-breakpoint-up(desktop)
+        main > .blocks &,
+        body.full-width &,
+            @content
 
 // Use this mixin to override with-aside or without-aside rules
 @mixin in-page-with-or-without-sidebar

assets/sass/_theme/blocks/base.sass

@@ -10,9 +10,20 @@
         .block-title.hidden + .description
                 margin-top: 0
 
+.heading
+    @include in-page-without-sidebar
+        h2
+            width: col(8)
+
 // Specific
 $backgrounded_blocks: ".block-call_to_action, .block-chapter--accent_background, .block-chapter--alt_background, .block-timeline--horizontal, .block-pages--cards"
 .blocks
     .block:first-child
         &:not(#{$backgrounded_blocks})
             padding-top: 0
+
+// Heading + block_cta + full-width
+.heading + .block-call_to_action
+    margin-top: $spacing3
+    padding-top: 0
+    
\ No newline at end of file