diff --git a/CHANGES.txt b/CHANGES.txt
index f7c4b91c58..bb2381b78b 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -9,6 +9,7 @@ Features
 Bugfixes
 --------
 
+* Fix margins of paragraphs at the end of sections (Issue #3704)
 * Ignore ``.DS_Store`` files in listing indexes (Issue #3698)
 * Fix baguetteBox.js invoking in the base theme (Issue #3687)
 
diff --git a/nikola/data/themes/base/assets/css/rst_base.css b/nikola/data/themes/base/assets/css/rst_base.css
index b14590389d..d5aa552ac8 100644
--- a/nikola/data/themes/base/assets/css/rst_base.css
+++ b/nikola/data/themes/base/assets/css/rst_base.css
@@ -72,10 +72,11 @@ span.problematic {
   margin-top: 0;
   margin-bottom: 0;
 }
-/* Nested Paragraphs */
+/* Nested Paragraphs
 p:first-child { margin-top: 0; }
 p:last-child { margin-bottom: 0; }
 details > p:last-child { margin-bottom: 1em; }
+ */
 
 /* Table of Contents */
 .contents ul.auto-toc { /* section numbers present */