From 1ec9b30733cf32da9bd45b6f00faeac67bdcc53f Mon Sep 17 00:00:00 2001
From: Rob <22121365+robbycbennett@users.noreply.github.com>
Date: Wed, 3 Jun 2026 08:20:12 -0600
Subject: [PATCH 1/2] librustdoc: fix CSS border issue to support Firefox high
 contrast mode #157378

---
 src/librustdoc/html/static/css/rustdoc.css | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css
index f0a812b97d04f..da34deeefb197 100644
--- a/src/librustdoc/html/static/css/rustdoc.css
+++ b/src/librustdoc/html/static/css/rustdoc.css
@@ -731,7 +731,8 @@ ul.block, .block li, .block ul {
 }
 
 .block ul a {
-	padding-left: 1rem;
+	/* extend click target to far edge of screen (mile wide bar) */
+	padding-left: calc(1rem + var(--sidebar-elems-left-padding));
 }
 
 .sidebar-elems a,
@@ -740,7 +741,7 @@ ul.block, .block li, .block ul {
 	padding: 0.25rem; /* 4px */
 	margin-right: 0.25rem;
 	/* extend click target to far edge of screen (mile wide bar) */
-	border-left: solid var(--sidebar-elems-left-padding) transparent;
+	padding-left: calc(0.25rem + var(--sidebar-elems-left-padding));
 	margin-left: calc(-0.25rem - var(--sidebar-elems-left-padding));
 	background-clip: border-box;
 }
@@ -861,7 +862,7 @@ ul.block, .block li, .block ul {
 		|        └─────┘
 		*/
 	margin-top: -16px;
-	border-top: solid 16px transparent;
+	padding-top: 16px;
 	box-sizing: content-box;
 	position: relative;
 	background-clip: border-box;
@@ -870,8 +871,6 @@ ul.block, .block li, .block ul {
 
 .sidebar-crate h2 a {
 	display: block;
-	/* extend click target to far edge of screen (mile wide bar) */
-	border-left: solid var(--sidebar-elems-left-padding) transparent;
 	background-clip: border-box;
 	margin: 0 calc(-24px + 0.25rem) 0 calc(-0.2rem - var(--sidebar-elems-left-padding));
 	/* Align the sidebar crate link with the search bar, which have different
@@ -888,7 +887,8 @@ ul.block, .block li, .block ul {
 		x = ( 16px - 0.57rem ) / 2
 	*/
 	padding: calc( ( 16px - 0.57rem ) / 2 ) 0.25rem;
-	padding-left: 0.2rem;
+	/* extend click target to far edge of screen (mile wide bar) */
+	padding-left: calc(0.2rem + var(--sidebar-elems-left-padding));
 }
 
 .sidebar-crate h2 .version {

From 8e9173fc3c7a32de2f24fa1edc16dc6cd0719a01 Mon Sep 17 00:00:00 2001
From: Rob <22121365+robbycbennett@users.noreply.github.com>
Date: Wed, 3 Jun 2026 11:05:15 -0600
Subject: [PATCH 2/2] librustdoc: update test to fix CSS border issue to
 support Firefox high contrast mode

---
 tests/rustdoc-gui/huge-logo.goml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/rustdoc-gui/huge-logo.goml b/tests/rustdoc-gui/huge-logo.goml
index 6ad6948ef2ab1..7bffbc16596c3 100644
--- a/tests/rustdoc-gui/huge-logo.goml
+++ b/tests/rustdoc-gui/huge-logo.goml
@@ -7,4 +7,4 @@ set-window-size: (1280, 1024)
 assert-property: (".sidebar-crate .logo-container", {"offsetWidth": "96", "offsetHeight": 48})
 // offsetWidth = width of sidebar, offsetHeight = height + top padding
 assert-property: (".sidebar-crate .logo-container img", {"offsetWidth": "48", "offsetHeight": 64})
-assert-css: (".sidebar-crate .logo-container img", {"border-top-width": "16px", "margin-top": "-16px"})
+assert-css: (".sidebar-crate .logo-container img", {"padding-top": "16px", "margin-top": "-16px"})