_display.scss in bootstrap-4.0.0.beta

- old
+ new

@@ -1,7 +1,7 @@
 //
-// Display utilities
+// Utilities for common `display` values
 //
 
 @each $breakpoint in map-keys($grid-breakpoints) {
   @include media-breakpoint-up($breakpoint) {
     $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
@@ -12,7 +12,42 @@
     .d#{$infix}-block        { display: block !important; }
     .d#{$infix}-table        { display: table !important; }
     .d#{$infix}-table-cell   { display: table-cell !important; }
     .d#{$infix}-flex         { display: flex !important; }
     .d#{$infix}-inline-flex  { display: inline-flex !important; }
+  }
+}
+
+
+//
+// Utilities for toggling `display` in print
+//
+
+.d-print-block {
+  display: none !important;
+
+  @media print {
+    display: block !important;
+  }
+}
+
+.d-print-inline {
+  display: none !important;
+
+  @media print {
+    display: inline !important;
+  }
+}
+
+.d-print-inline-block {
+  display: none !important;
+
+  @media print {
+    display: inline-block !important;
+  }
+}
+
+.d-print-none {
+  @media print {
+    display: none !important;
   }
 }