diff --git a/internal/pkg/epubtemplates/style.css.tmpl b/internal/pkg/epubtemplates/style.css.tmpl
index cfa4f08..253a4c8 100644
--- a/internal/pkg/epubtemplates/style.css.tmpl
+++ b/internal/pkg/epubtemplates/style.css.tmpl
@@ -15,4 +15,5 @@ img {
   margin:0;
   padding:0;
   z-index:0;
-}
\ No newline at end of file
+  object-fit: contain;
+}