diff --git a/ts/reviewer/reviewer.scss b/ts/reviewer/reviewer.scss
index 019cf1a81..a2c05d3f5 100644
--- a/ts/reviewer/reviewer.scss
+++ b/ts/reviewer/reviewer.scss
@@ -7,6 +7,8 @@
 hr {
     background-color: vars.palette(darkgray, 0);
     margin: 1em 0;
+    border: none;
+    height: 1px;
 }
 
 body {