diff --git a/slides/chapter-02.de.md b/slides/chapter-02.de.md
index 65a836f..16c6d01 100644
--- a/slides/chapter-02.de.md
+++ b/slides/chapter-02.de.md
@@ -110,27 +110,6 @@ In eckigen Klammern können verschieden viele optionale Parameter stehen:
% bindet das Bild "bild.png" ein
```
-@slide(layout=content-and-preview)
-
-@title
-Kommentare
-
-@content
-Nach einem Prozentzeichen wird der Rest der Zeile vom Compiler ignoriert. Der Kommentartext erscheint also nicht im fertigen Dokument.
-
-``` {.lang-tex .hljs}
-% Beginn Steckbrief
-Name: Donald Knuth \\
-Geburtsdatum: \\ % TODO: einfügen
-Geburtsort: Milwaukee, Wisconsin
-% Ende Steckbrief
-```
-
-Tastenkombinationen: Strg + T und Strg + U
-
-@preview
-
-
@slide(layout=content-only)
diff --git a/slides/chapter-02.en.md b/slides/chapter-02.en.md
index 3d8b34b..25256eb 100644
--- a/slides/chapter-02.en.md
+++ b/slides/chapter-02.en.md
@@ -110,27 +110,6 @@ Square brackets may contain different numbers of optional parameters:
% embeds the image file "image.png"
```
-@slide(layout=content-and-preview)
-
-@title
-Comments
-
-@content
-After a percent sign, the rest of the line is ignored by the compiler. It is called a comment and does not appear in the resulting document.
-
-``` {.lang-tex .hljs}
-% profile start
-Name: Donald Knuth \\
-Date of birth: \\ % TODO: insert
-Place of birth: Milwaukee, Wisconsin
-% profile end
-```
-
-Shortcuts: Ctrl + T and Ctrl + U
-
-@preview
-
-
@slide(layout=content-only)
diff --git a/slides/chapter-03.de.md b/slides/chapter-03.de.md
index beaed25..dbe25fe 100644
--- a/slides/chapter-03.de.md
+++ b/slides/chapter-03.de.md
@@ -180,6 +180,28 @@ nichts verloren.

+@slide(layout=content-and-preview)
+
+@title
+Kommentare
+
+@content
+Nach einem Prozentzeichen wird der Rest der Zeile vom Compiler ignoriert. Der Kommentartext erscheint also nicht im fertigen Dokument.
+
+``` {.lang-tex .hljs}
+% Beginn Steckbrief
+Name: Donald Knuth \\
+Geburtsdatum: \\ % TODO: einfügen
+Geburtsort: Milwaukee, Wisconsin
+% Ende Steckbrief
+```
+
+Tastenkombinationen: Strg + T und Strg + U
+
+@preview
+
+
+
@slide(layout=content-and-preview-with-category)
@category
diff --git a/slides/chapter-03.en.md b/slides/chapter-03.en.md
index a6c0038..a94cf47 100644
--- a/slides/chapter-03.en.md
+++ b/slides/chapter-03.en.md
@@ -180,6 +180,28 @@ within continuous text.

+@slide(layout=content-and-preview)
+
+@title
+Comments
+
+@content
+After a percent sign, the rest of the line is ignored by the compiler. It is called a comment and does not appear in the resulting document.
+
+``` {.lang-tex .hljs}
+% profile start
+Name: Donald Knuth \\
+Date of birth: \\ % TODO: insert
+Place of birth: Milwaukee, Wisconsin
+% profile end
+```
+
+Shortcuts: Ctrl + T and Ctrl + U
+
+@preview
+
+
+
@slide(layout=content-and-preview-with-category)
@category