diff --git a/src/report/report_viewer.css b/src/report/report_viewer.css
index f734fdc04a..66f7915187 100644
--- a/src/report/report_viewer.css
+++ b/src/report/report_viewer.css
@@ -58,6 +58,9 @@ html, body {
   display: flex;
   justify-content: space-between;
   align-items: center;
+  position: sticky;
+  top: 0;
+  background: white;
 }
 
 .file-header__back {