From 0196437f8e062817d3277bb1484de3fbdcb3e19d Mon Sep 17 00:00:00 2001
From: Richard Si <63936253+ichard26@users.noreply.github.com>
Date: Sat, 23 May 2020 14:56:50 -0400
Subject: [PATCH] Scrollable sidebar (#1457)

* Make the sidebar navigation scrollable

This is necessary since we have so many documentation sections that even
on a desktop screen, the navigation can sometimes be clipped. The only
annoyance is that on Firefox, the scrollbar can't be hidden :(

* allow the docs to build
---
 README.md               |  2 +-
 docs/_static/custom.css | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 docs/_static/custom.css

diff --git a/README.md b/README.md
index 9065e8a..3c63cb5 100644
--- a/README.md
+++ b/README.md
@@ -1214,7 +1214,7 @@ cooper-mbp:black cooper$ ~/venvs/b/bin/black-primer
 
 Failed projects:
 
-## flake8-bugbear:
+### flake8-bugbear:
  - Returned 1
  - stdout:
 --- tests/b303_b304.py	2020-05-17 20:04:09.991227 +0000
diff --git a/docs/_static/custom.css b/docs/_static/custom.css
new file mode 100644
index 0000000..c06c40a
--- /dev/null
+++ b/docs/_static/custom.css
@@ -0,0 +1,38 @@
+/* Make the sidebar scrollable. Fixes https://github.com/psf/black/issues/990 */
+div.sphinxsidebar {
+  max-height: calc(100% - 18px);
+  overflow-y: auto;
+}
+
+/* Hide scrollbar for Chrome, Safari and Opera */
+div.sphinxsidebar::-webkit-scrollbar {
+  display: none;
+}
+
+/* Hide scrollbar for IE 6, 7 and 8 */
+@media \0screen\, screen\9 {
+  div.sphinxsidebar {
+    -ms-overflow-style: none;
+  }
+}
+
+/* Hide scrollbar for IE 9 and 10 */
+/* backslash-9 removes ie11+ & old Safari 4 */
+@media screen and (min-width: 0\0) {
+  div.sphinxsidebar {
+    -ms-overflow-style: none\9;
+  }
+}
+
+/* Hide scrollbar for IE 11 and up */
+_:-ms-fullscreen,
+:root div.sphinxsidebar {
+  -ms-overflow-style: none;
+}
+
+/* Hide scrollbar for Edge */
+@supports (-ms-ime-align: auto) {
+  div.sphinxsidebar {
+    -ms-overflow-style: none;
+  }
+}
-- 
2.39.2