Issue 5385 - Create Site Header Component for Help Center

static/scss/base/_utilities.scss

 // This file is part of help.eyeo.com.
 // Copyright (C) 2017 Eyeo GmbH
 //
 // help.eyeo.com is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 //
 // help.eyeo.com is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 45 matching lines @@
 .phablet-and-mobile-only
 {
   @media (min-width: $tablet-breakpoint)
   {
     display: none;
   }
 }
 
 .tablet-and-desktop-only
 {
-  @media (max-width: $tablet-breakpoint)
+  @media (max-width: $tablet-breakpoint - 1px)
   {
     display: none;
   }
 }
 
 .desktop-only
 {
-  @media (max-width: $desktop-breakpoint)
+  @media (max-width: $desktop-breakpoint - 1px)
   {
     display: none;
   }
 }
 
 // Unstyled ///////////////////////////////////////////////////////////////
 
 .unstyled
 {
   margin: 0;
   padding: 0;
   border: 0;
   background: none;
 }