diff --git a/ChangeLog b/ChangeLog
index 1910c87ee..03a0d8eb7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,9 @@
 
 	Version 1.12.9
 
+	* #850: Fix embedded youtube video bug.
+          (reported by sblondon)
+
 	* Fixes #846, #864: Translations not applied to application
 	  menu bar and tool bar.
 	  (Skif-off)
diff --git a/css/liferea.css b/css/liferea.css
index 5fbdecf34..a2fa246fd 100644
--- a/css/liferea.css
+++ b/css/liferea.css
@@ -73,10 +73,20 @@ dd {
 	padding-left: 30px;
 }
 
-section, video, svg, iframe, figure, div.content * img {
+section, svg, div.content * img {
 	max-width: 100%;
+	box-sizing: border-box;
 	object-fit: scale-down;
+}
+
+figure, iframe {
+	max-width: 100%;
 	box-sizing: border-box;
+
+	/* Note: object-fit would be best practice here, but it fails
+	   on embedded Youtube videos (pushing the embed iframe far
+	   to the right with the controls being not in the place
+	   visually shown) */
 }
 
 div.content * img {