[PATCH 3/3] docs: add left padding to C API signature rows

[Rito Rhymes]

Add a small amount of left padding to rendered C API signature
rows.

This improves readability because the signature row and its
container use different background colors, and when the first
character sits too close to that contrasting edge it is harder to
read.

Signed-off-by: Rito Rhymes <rito@xxxxxxxxxxxxxx>
Assisted-by: Codex:GPT-5.4
---
 Documentation/sphinx-static/custom.css | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/sphinx-static/custom.css b/Documentation/sphinx-static/custom.css
index 64ea94879..41413b683 100644
--- a/Documentation/sphinx-static/custom.css
+++ b/Documentation/sphinx-static/custom.css
@@ -40,6 +40,7 @@ li { text-indent: 0em; }
 dl.function, dl.struct, dl.enum { margin-top: 2em; background-color: #ecf0f3; }
 /* indent lines 2+ of multi-line function prototypes */
 dl.function dt { margin-left: 10em; text-indent: -10em; }
+dl.c > dt { padding-left: 10px; }
 dt.sig-object { font-size: larger; }
 div.kernelindent { margin-left: 2em; margin-right: 4em; }
 
-- 
2.51.0