diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index ecec71804b..9f6958b37d 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -8249,11 +8249,13 @@ noscript {
   img {
     margin-top: 2em;
     margin-bottom: 2em;
+    max-width: 100%;
   }
 
   video {
     margin-top: 2em;
     margin-bottom: 2em;
+    max-width: 100%;
   }
 
   figure {