1 files changed, 33 insertions, 0 deletions
diff --git a/devtools/client/application/src/components/routing/Sidebar.css b/devtools/client/application/src/components/routing/Sidebar.css
new file mode 100644
index 0000000000..872f5cca86
--- /dev/null
+++ b/devtools/client/application/src/components/routing/Sidebar.css
@@ -0,0 +1,33 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/*
+ * Sidebar list container
+ */
+.sidebar {
+	background-color: var(--bg-color);
+}
+
+/* vertical layout -> the sidebar is the first row */
+@media(max-width: 700px) {
+	.sidebar {
+		border-block-end: 1px solid var(--separator-color);
+	}
+}
+
+/* wide layout -> the sidebar occupies a whole column on the side */
+@media(min-width: 701px) {
+	.sidebar {
+		min-height: 100vh;
+		border-inline-end: 1px solid var(--separator-color);
+	}
+}
+
+.sidebar__list {
+	list-style: none;
+	padding: 0;
+	font-size: var(--body-10-font-size);
+	font-weight: var(--body-10-font-weight);
+}