diff --git a/MANUAL.txt b/MANUAL.txt
index fc33b3433..1c61b62fd 100644
--- a/MANUAL.txt
+++ b/MANUAL.txt
@@ -4042,18 +4042,35 @@ Speaker notes
 reveal.js has good support for speaker notes.  You can add notes to your
 Markdown document thus:
 
-    <div class="notes">
+    ::: notes
+
     This is my note.
 
     - It can contain Markdown
     - like this list
 
-    </div>
+    :::
 
 To show the notes window, press `s` while viewing the presentation.
 Notes are not yet supported for other slide formats, but the notes
 will not appear on the slides themselves.
 
+Columns
+-------
+
+To put material in side by side columns, you can use a native
+div container with class `columns`, containing two or more div
+containers with class `column` and a `width` attribute:
+
+    :::::::::::::: {.columns}
+    ::: {.column width="40%"}
+    contents...
+    :::
+    ::: {.column width="60%"}
+    contents...
+    :::
+    ::::::::::::::
+
 Frame attributes in beamer
 --------------------------
 
diff --git a/changelog b/changelog
index 9716e062f..f95f809d1 100644
--- a/changelog
+++ b/changelog
@@ -75,14 +75,14 @@ pandoc (2.0)
   * Implement multicolumn support for slide formats (#1710).
     The structure expected is:
 
-        <div class="columns">
-          <div class="column" width="40%">
-            contents...
-          </div>
-          <div class="column" width="60%">
-            contents...
-          </div>
-        </div>
+        :::::::::::::: {.columns}
+        ::: {.column width="40%"}
+        contents...
+        :::
+        ::: {.column width="60%"}
+        contents...
+        :::
+        ::::::::::::::
 
     Support has been added for beamer and all HTML slide formats.