Merge pull request #14790 from twbs/print

Print style updates

dist/css/bootstrap.css

@@ -188,8 +188,11 @@ td,
 th {
   padding: 0;
 }
+/*! Source: https://github.com/h5bp/html5-boilerplate/blob/master/src/css/main.css */
 @media print {
-  * {
+  *,
+  *:before,
+  *:after {
     color: #000 !important;
     text-shadow: none !important;
     background: transparent !important;

docs/dist/css/bootstrap.css

@@ -188,8 +188,11 @@ td,
 th {
   padding: 0;
 }
+/*! Source: https://github.com/h5bp/html5-boilerplate/blob/master/src/css/main.css */
 @media print {
-  * {
+  *,
+  *:before,
+  *:after {
     color: #000 !important;
     text-shadow: none !important;
     background: transparent !important;

less/print.less

-//
-// Basic print styles
-// --------------------------------------------------
-// Source: https://github.com/h5bp/html5-boilerplate/blob/master/src/css/main.css
+/*! Source: https://github.com/h5bp/html5-boilerplate/blob/master/src/css/main.css */
+
+// ==========================================================================
+// Print styles.
+// Inlined to avoid the additional HTTP request: h5bp.com/r
+// ==========================================================================
 
 @media print {
-  * {
+    *,
+    *:before,
+    *:after {
         background: transparent !important;
         color: #000 !important; // Black prints faster: h5bp.com/s
         box-shadow: none !important;
@@ -62,6 +66,8 @@
         page-break-after: avoid;
     }
 
+    // Bootstrap specific changes start
+    //
     // Chrome (OSX) fix for https://github.com/twbs/bootstrap/issues/11245
     // Once fixed, we can just straight up remove this.
     select {
@@ -96,4 +102,6 @@
             border: 1px solid #ddd !important;
         }
     }
+
+    // Bootstrap specific changes end
 }