diff --git a/assets/mastodon.css b/assets/mastodon.css
index 86d8c76..724eda1 100644
--- a/assets/mastodon.css
+++ b/assets/mastodon.css
@@ -289,6 +289,9 @@
 .status__content .media-gallery__item{
   margin: 1em 0;
 }
+video.media-gallery__item{
+  max-width: 100%;
+}
 i.fa-retweet {
     background-image: url('../img/retoot.svg');
     background-position: 0 0;