diff --git a/bookwyrm/static/css/format.css b/bookwyrm/static/css/format.css
index 9e8a24ba..dd5c45eb 100644
--- a/bookwyrm/static/css/format.css
+++ b/bookwyrm/static/css/format.css
@@ -65,6 +65,7 @@ input.toggle-control:checked ~ .modal.toggle-content {
 .cover-container {
     height: 250px;
     width: max-content;
+    max-width: 250px;
 }
 .cover-container.is-medium {
     height: 150px;