diff --git a/css/vips.css b/css/vips.css
index 4df87516c62b591669ae29d50292c0a86a1a2fb7..90006a4105229acc6d39382548847b42e3acb265 100644
--- a/css/vips.css
+++ b/css/vips.css
@@ -165,6 +165,10 @@ button.vips_file_upload:hover {
     font-family: monospace;
 }
 
+.vips_tabs .vips_output {
+    background: none;
+}
+
 .vips_output {
     background-color: #f5f6f6;
     background-color: var(--dark-gray-color-5, #f5f6f6);