diff --git a/views/bootstrap4/styles/application.css b/views/bootstrap4/styles/application.css
index 32a172223..40a55a08c 100644
--- a/views/bootstrap4/styles/application.css
+++ b/views/bootstrap4/styles/application.css
@@ -39,6 +39,8 @@ img.mimeicon {
   border-style: solid;
   border-width: 1px 2px 2px 1px;
 	background-color: white;
+	max-width: 100%;
+	min-width: 60px;
 }
 
 span.list-details {