diff --git a/docs/assets/bootstrap.zip b/docs/assets/bootstrap.zip
index 1729408b0b..c93d0230e6 100644
Binary files a/docs/assets/bootstrap.zip and b/docs/assets/bootstrap.zip differ
diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index 37f0aac4f1..82b96d55df 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -931,7 +931,6 @@ input:focus:required:invalid:focus, textarea:focus:required:invalid:focus, selec
   padding: 4px 5px;
   font-weight: normal;
   line-height: 18px;
-  color: #999999;
   text-align: center;
   text-shadow: 0 1px 0 #ffffff;
   background-color: #f5f5f5;
diff --git a/less/forms.less b/less/forms.less
index 0f7ba9d50e..7f02ce3659 100644
--- a/less/forms.less
+++ b/less/forms.less
@@ -385,7 +385,6 @@ select:focus:required:invalid {
     padding: 4px 5px;
     font-weight: normal;
     line-height: @baseLineHeight;
-    color: @grayLight;
     text-align: center;
     text-shadow: 0 1px 0 @white;
     background-color: #f5f5f5;