diff --git a/scss/_reboot.scss b/scss/_reboot.scss
index b6e8a79a50..7da6e30444 100644
--- a/scss/_reboot.scss
+++ b/scss/_reboot.scss
@@ -69,7 +69,6 @@ body {
 //
 // 1. Reset Firefox's gray color
 // 2. Set correct height and prevent the `size` attribute to make the `hr` look like an input field
-//    See https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_hr_size
 
 hr {
   margin: $hr-margin-y 0;