Put basic print stylesheet back in

Replicates the GOV.UK template one, adjusted for
the GOV.UK Frontend template HTML.

app/assets/stylesheets/print.scss

@@ -0,0 +1,85 @@
+// sass-lint:disable no-important
+// set asset URL root to match that of application
+$govuk-assets-path: "/static/";
+
+@import "settings/all";
+@import "tools/all";
+@import "helpers/all";
+
+@import "core/all";
+@import "objects/all";
+
+* {
+  background: transparent;
+  color: black;
+  text-shadow: none;
+  filter: none;
+  -ms-filter: none;
+}
+
+body {
+  @include govuk-font($size: 14);
+  margin: 0;
+  padding: 0;
+  width: 100%;
+}
+
+a,
+a:visited {
+  word-wrap: break-word;
+}
+
+a[href^="/"]:after,
+a[href^="http://"]:after,
+a[href^="https://"]:after {
+  content: " (" attr(href) ")";
+  font-size: 90%;
+}
+
+a[href^="javascript:"]:after,
+a[href^="#"]:after {
+  content: "";
+}
+
+img {
+  max-width: 100% !important;
+}
+
+select {
+  background: white;
+}
+
+.govuk-header {
+
+  .govuk-header__logo {
+    @include govuk-font($size: 19);
+    text-rendering: optimizeLegibility;
+
+    a {
+      &,
+      &:visited {
+        text-decoration: none;
+      }
+
+      &:after {
+        content: "";
+      }
+    }
+
+    svg {
+      width: 45px;
+      height: 40px;
+      position: relative;
+      top: -3px;
+      vertical-align: bottom;
+    }
+  }
+}
+
+.govuk-visually-hidden,
+.govuk-visually-hidden-focusable,
+.notify-cookie-message,
+.govuk-skip-link,
+.govuk-footer {
+  display: none !important;
+}

app/templates/admin_template.html

@@ -13,6 +13,7 @@
 
 {% block head %}
   <link rel="stylesheet" media="screen" href="{{ asset_url('stylesheets/main.css') }}" />
+  <link rel="stylesheet" media="print" href="{{ asset_url('stylesheets/print.css') }}" />
   <style>
       .govuk-header__container { border-color: {{header_colour}} }
   </style>

gulpfile.js

@@ -126,7 +126,7 @@ const javascripts = () => {
 
 
 const sass = () => {
-  return src(paths.src + '/stylesheets/main*.scss')
+  return src([paths.src + '/stylesheets/main*.scss', paths.src + '/stylesheets/print.scss'])
     .pipe(plugins.prettyerror())
     .pipe(plugins.sass({
       outputStyle: 'compressed',