diff --git a/css/main.css b/css/main.css
index 2b348d9..132b85f 100644
--- a/css/main.css
+++ b/css/main.css
@@ -256,6 +256,9 @@ table td.filename .thumbnail {
 	float: left;
 	position: absolute;
 	z-index: 4;
+	background-repeat: no-repeat;
+	background-size: contain;
+	background-position: center;
 }
 table td.filename input.filename {
 	width: 70%;