[PATCH v2 2/6] docs: tweak some Alabaster style parameters

[Jonathan Corbet]

This is just the beginning: tighten up the layout a bit to improve the
information density in the browser.  Also reconfigure the page width in
terms of character units (em) rather than pixels, making it more
display-independent.  To that end, add a custom.css file to
tweak Alabaster CSS settings.

Signed-off-by: Jonathan Corbet <corbet@xxxxxxx>
---
 Documentation/conf.py                  |  3 +++
 Documentation/sphinx-static/custom.css | 14 ++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 Documentation/sphinx-static/custom.css

diff --git a/Documentation/conf.py b/Documentation/conf.py
index 629f4afeb0eb..1dbf3d6a55de 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -345,6 +345,9 @@ if  html_theme == 'classic':
 else:
     html_theme_options = {
         'description': get_cline_version(),
+        'font_size': '10pt',
+        'page_width': '65em',
+        'sidebar_width': '15em',
     }
 
 sys.stderr.write("Using %s theme\n" % html_theme)
diff --git a/Documentation/sphinx-static/custom.css b/Documentation/sphinx-static/custom.css
new file mode 100644
index 000000000000..6b0e554cea0a
--- /dev/null
+++ b/Documentation/sphinx-static/custom.css
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * CSS tweaks for the Alabaster theme
+ */
+
+/* Shrink the headers a bit */
+div.body h1 { font-size: 180%; }
+div.body h2 { font-size: 150%; }
+div.body h3 { font-size: 130%; }
+
+/* Tighten up the layout slightly */
+div.body { padding: 0 15px 0 10px; }
+div.document { margin: 20px 10px 0 10px; }
+div.sphinxsidebarwrapper { padding: 1em 0.4em; }
-- 
2.37.2