change instances of hardcoded lightest gray to sass variable -lightest

diff --git a/scss/_variables.scss b/scss/_variables.scss
index 86a6a36f78e89dd5cbfc73c16aa890dc3afbcd93..03b727a667a06e03f81be7a19cd5ccd88931777d 100644 (file)
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -916,12 +916,12 @@ $code-font-size:              90% !default;
 $code-padding-x:              .4rem !default;
 $code-padding-y:              .2rem !default;
 $code-color:                  #bd4147 !default;
-$code-bg:                     #f7f7f9 !default;
+$code-bg:                     $gray-lightest !default;
 
 $kbd-color:                   #fff !default;
 $kbd-bg:                      #333 !default;
 
-$pre-bg:                      #f7f7f9 !default;
+$pre-bg:                      $gray-lightest !default;
 $pre-color:                   $gray-dark !default;
 $pre-border-color:            #ccc !default;
 $pre-scrollable-max-height:   340px !default;