diff --git a/src/tips/en/debug-print-css-styles.md b/src/tips/en/debug-print-css-styles.md
index 2cbc5181..d9df114f 100644
--- a/src/tips/en/debug-print-css-styles.md
+++ b/src/tips/en/debug-print-css-styles.md
@@ -1,6 +1,6 @@
 ---
 date: 2023-05-02
-authors: Patrick Brosset
+authors: Patrick Brosset, Kilian Valkhof
 title: Debug your print CSS styles by simulating print media
 tags:
   ["css", "testing", "browser:edge", "browser:chrome", "browser:firefox", "browser:polypane"]
@@ -27,9 +27,9 @@ DevTools has a way to simulate the print media right in the browser tab where De
 
 * In Polypane:
 
-    1. Open the **Emulation options**
+    1. Open the **Emulation options**.
     2. Toggle **Media type** to "print".
 
     _Tip: open two panes side-by-side and set one to print media to compare the print and screen versions of your page._
 
-    ![Polypane with the Emulation options open, showing the media type option set to "print"](../../assets/img/debug-print-css-styles-polypane.png) 
\ No newline at end of file
+    ![Polypane with the Emulation options open, showing the media type option set to "print"](../../assets/img/debug-print-css-styles-polypane.png)