diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index 2f56af33f3..145e08a5b6 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -5813,6 +5813,9 @@ a.badge:focus {
      -moz-transition: width 0.6s ease;
        -o-transition: width 0.6s ease;
           transition: width 0.6s ease;
+  -webkit-backface-visibility: hidden;
+     -moz-backface-visibility: hidden;
+          backface-visibility: hidden;
 }
 
 .progress .bar + .bar {