diff --git a/web/viewer.css b/web/viewer.css
index 737df7dd1..dd29d626d 100644
--- a/web/viewer.css
+++ b/web/viewer.css
@@ -281,7 +281,6 @@ body {
   overflow: auto;
   position: absolute;
   width: 100%;
-  background-color: rgba(0, 0, 0, 0.05);
   box-shadow: inset calc(-1px * var(--dir-factor)) 0 0 rgba(0, 0, 0, 0.25);
 }