diff --git a/css/modal.css b/css/modal.css
index a545f513..45e0f205 100644
--- a/css/modal.css
+++ b/css/modal.css
@@ -84,5 +84,6 @@ body:has(dialog[open]) {
 	max-height: calc(90vh - 2rem);
   object-fit: contain;
   width: auto;
-  margin: 0 1rem;
+  max-width: 90%;
+  margin: 0 auto;
 }