bootstrap 4 beta 2

Bootstrap 4 beta 2

bootstap 4 alpha 6/scss/mixins/_background-variant.scss

@@ -0,0 +1,12 @@
+// Contextual backgrounds
+
+@mixin bg-variant($parent, $color) {
+  #{$parent} {
+    background-color: $color !important;
+  }
+  a#{$parent} {
+    @include hover-focus {
+      background-color: darken($color, 10%) !important;
+    }
+  }
+}