diff --git a/dev/Styles/User/MessageView.less b/dev/Styles/User/MessageView.less
index f7627bafc..1f8157f4e 100644
--- a/dev/Styles/User/MessageView.less
+++ b/dev/Styles/User/MessageView.less
@@ -372,7 +372,7 @@
 		&.html {
 
 			img {
-				max-width: 90vw;
+				max-width: 100%;
 				height: auto;
 			}
 			img[data-x-src]:not([src]) {