Issue 4925 - Create accordion component for Help Center

static/scss/components/_accordion.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/>.
+
+.accordion
+{
+  border: 1px solid $gray;
+  border-radius: $xs;
+  overflow: hidden;
+}
+
+.accordion-toggle-button
+{
+  display: block;
+  border: 0;
+  border-bottom: 1px solid $gray;
+  background-color: $gray-light;
+  padding: $sm;
+  width: 100%;
+  text-align: left;
+  font: inherit;
+  font-weight: $bold-weight;
+}
+
+[dir="rtl"] .accordion-toggle-button
+{
+  text-align: right;
+}
+
+.accordion-heading:last-of-type .accordion-toggle-button[aria-expanded="false"]
+{
+  border-bottom: 0;
+}
+
+.accordion-toggle-button img
+{
+  height: 0.6em;
+  margin-right: 0.6em;
+}
+
+[dir="rtl"] .accordion-toggle-button img
+{
+  transform: rotate(180deg);

[ire, 2017/09/18 10:08:11]

transforms aren't supported by IE8 (http://caniuse.com/#feat=transforms2d) .
AFAIK it's still undecided if IE8 is supported by the Help Center

+  margin-right: 0;
+  margin-left: 0.6em;
+}
+
+.accordion-toggle-button[aria-expanded="false"] img
+{
+  transform: rotate(90deg);
+}
+
+.accordion-body
+{
+  padding: $sm;
+  border-bottom: 1px solid $gray;
+}
+
+.accordion-body:last-of-type
+{
+  border-bottom: 0;
+}