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
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with help.eyeo.com.  If not, see <http://www.gnu.org/licenses/>.
+
+// Screen reader ///////////////////////////////////////////////////////////////
+
+// Use this class to add screen reader / web crawler only content
+//
+// EG:
+// - An h1 for SEO that is not visible
+// - A skip-to link for screen readers
+
+.sr-only
+{
+  position: absolute;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  width: 1px;
+  height: 1px;
+  margin: -1px;
+  padding: 0;
+  border: 0;
+}
+
+// Clearfix ///////////////////////////////////////////////////////////////
+
+.clearfix:after
+{
+  display: table;
+  clear: both;
+  content: "";
+}
+
+// Responsive ///////////////////////////////////////////////////////////////

[juliandoucette, 2017/08/29 16:17:23]

It may be worth proposing that we rename $size-breakpoint to $size-min-width
based on the miscommunications below.

+
+.mobile-only
+{
+  @media (min-width: $mobile-breakpoint)

[juliandoucette, 2017/08/23 14:39:05]

See comment
[here](https://codereview.adblockplus.org/29485575/diff/29523654/static/scss/base/_variables.scss#newcode92).

[ire, 2017/08/25 08:27:08]

Acknowledged.

[juliandoucette, 2017/08/29 16:17:24]

Note: This should be min-width $tablet-breakpoint or min-width:
$phablet-breakpoint if we keep the existing naming scheme.

[ire, 2017/09/01 10:57:18]

Done.

+  {
+    display: none;
+  }
+}
+
+.tablet-and-mobile-only

[juliandoucette, 2017/08/23 14:39:05]

The website-default grid considers anything less than $desktop-breakpoint to be
tablet.

Also see comment
[here](https://codereview.adblockplus.org/29485575/diff/29523654/static/scss/base/_variables.scss#newcode92)

The same applies below.

[ire, 2017/08/25 08:27:08]

Ack. See my reply on the quoted comment.

[juliandoucette, 2017/08/29 16:17:23]

On 2017/08/25 08:27:08, ire wrote:
Ack. See my reply on the quoted comment.

Note: This should be min-width: $desktop-breakpoint if we keep the existing
naming scheme.

[ire, 2017/09/01 10:57:17]

This is changed to .phablet-and-mobile-only, width min-width: $tablet-breakpoint

+{
+  @media (min-width: $tablet-breakpoint)
+  {
+    display: none;
+  }
+}
+
+.tablet-and-desktop-only
+{
+  @media (max-width: $mobile-breakpoint)
+  {
+    display: none;
+  }
+}
+
+.desktop-only

[juliandoucette, 2017/08/23 14:39:05]

The website-default grid considers anything more than $desktop-breakpoint to be
desktop.

[ire, 2017/08/25 08:27:09]

Ack. See my reply on the quoted comment.

[juliandoucette, 2017/08/29 16:17:24]

Note: This should be min-width: $desktop-breakpoint if we keep the existing
naming scheme.

[ire, 2017/09/01 10:57:17]

This is max-width: $desktop-breakpoint, because I'm using max-width instead so i
don't have to apply a display property other than none (we don't know what the
display property of the element this class is applied to should be)

[juliandoucette, 2017/09/01 11:43:44]

Acknowledged. But it should be $tablet-breakpoint - 1 (otherwise you will create
a 1px grey area).

[ire, 2017/09/01 12:12:03]

Done.

+{
+  @media (max-width: $tablet-breakpoint)
+  {
+    display: none;
+  }
+}
+
+// Unstyled ///////////////////////////////////////////////////////////////
+
+.unstyled
+{
+  margin: 0;
+  padding: 0;
+  border: 0;
+  background: none;
+}