Merge pull request #17069 from kkirsche/patch-9

Card variables should be in _variables.scss

scss/_card.scss

@@ -2,15 +2,6 @@
 // Base styles
 //
 
-$card-spacer-x:            1.25rem;
-$card-spacer-y:            .75rem;
-$card-border-width:        .0625rem;
-$card-border-radius:       .25rem;
-$card-border-color:        #e5e5e5;
-$card-border-radius-inner: ($card-border-radius - $card-border-width);
-
-$card-cap-bg: #f5f5f5;
-
 .card {
   position: relative;
   margin-bottom: $card-spacer-y;

scss/_variables.scss

@@ -444,6 +444,16 @@ $state-danger-bg:                #f2dede !default;
 $state-danger-border:            darken($state-danger-bg, 5%) !default;
 
 
+// Cards
+$card-spacer-x:            1.25rem;
+$card-spacer-y:            .75rem;
+$card-border-width:        .0625rem;
+$card-border-radius:       .25rem;
+$card-border-color:        #e5e5e5;
+$card-border-radius-inner: ($card-border-radius - $card-border-width);
+
+$card-cap-bg: #f5f5f5;
+
 // Tooltips
 
 $tooltip-max-width:           200px !default;