diff --git a/agaric/sass/agaric/_layout.flow.scss b/agaric/sass/agaric/_layout.flow.scss
index 6942e3f..1d972bd 100644
--- a/agaric/sass/agaric/_layout.flow.scss
+++ b/agaric/sass/agaric/_layout.flow.scss
@@ -33,11 +33,13 @@
       margin-right: calc(50% - 50vw + 0.5em);
     }
   }
-  //
   [class^=flow] {
     box-sizing: border-box;
+    margin-top: 1rem; // Top and bottom will collapse to 1em if two paragraphs
+    margin-bottom: 1rem; // in a row, matching the p bottom margin.
     @include tablet {
-      margin: $column-gap;
+      margin-left: $column-gap;
+      margin-right: $column-gap;
     }
     + [class^=flow] {
       h2:first-child {