diff --git a/src/_h5ai/client/css/inc/view.less b/src/_h5ai/client/css/inc/view.less
index ee173114..77c9147a 100644
--- a/src/_h5ai/client/css/inc/view.less
+++ b/src/_h5ai/client/css/inc/view.less
@@ -6,7 +6,7 @@
     top: 0;
     z-index: 2;
     border: 1px dashed @col-border-strong;
-    background: rgba(0,0,0,0.01);
+    background: rgba(0,0,0,0.1);
 }