fix #17356

diff --git a/scss/_variables.scss b/scss/_variables.scss
index a01c12440f1c646349e1aa3a601c907d40bb7c83..70ac7f38ce848370fde412d189a9a7dec6db931b 100644 (file)
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -286,7 +286,7 @@ $input-height:                   (($font-size-base * $line-height) + ($input-pad
 $input-height-lg:                (($font-size-lg * $line-height-lg) + ($input-padding-y-lg * 2) + ($border-width * 2)) !default;
 $input-height-sm:                (($font-size-sm * $line-height-sm) + ($input-padding-y-sm * 2) + ($border-width * 2)) !default;
 
-$form-group-margin-bottom:       15px !default;
+$form-group-margin-bottom:       $spacer-y !default;
 
 $input-group-addon-bg:           $gray-lighter !default;
 $input-group-addon-border-color: $input-border !default;