diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 26774ab43..beb3b3cfd 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -5575,6 +5575,13 @@ a.status-card.compact:hover {
   }
 }
 
+.gifv {
+  video {
+    max-width: 100vw;
+    max-height: 80vh;
+  }
+}
+
 .directory {
   &__list {
     width: 100%;