add pseudo element to conserve margin-bottom

assets/sass/_theme/sections/events.sass

@@ -12,6 +12,7 @@
     @include media-breakpoint-up(desktop)
         .document-content
             min-height: 600px
+            // Add after element to avoid "min-height" to ignore the last block's margin-bottom
             &::after
                 content: ''
                 display: block

assets/sass/_theme/sections/posts.sass

@@ -82,6 +82,11 @@
         // Safe spacing if post is empty
     .document-content
         min-height: 350px
+        // Add after element to avoid "min-height" to ignore the last block's margin-bottom
+        &::after
+            content: ''
+            display: block
+            height: 1px
     &:not(.full-width)
         .post-sidebar
             @include sidebar