From 720765ea63268e133eb7bbfed4434685b6c3f7af Mon Sep 17 00:00:00 2001
From: Rafael Kraut <14234815+RafaelKr@users.noreply.github.com>
Date: Wed, 25 Oct 2023 08:58:44 +0200
Subject: [PATCH 1/3] Add opacity to ferris when hovering the code block

fixes #2893
---
 ferris.css | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/ferris.css b/ferris.css
index fb4a553ffb..4d2097dc0d 100644
--- a/ferris.css
+++ b/ferris.css
@@ -24,6 +24,16 @@ body.ayu .not_desired_behavior {
   z-index: 99;
   right: 5px;
   top: 30px;
+  opacity: 1;
+  transition: opacity 0.1s;
+}
+
+pre:hover .ferris-container {
+  opacity: 0.15;
+}
+
+pre:hover .ferris-container:hover {
+  opacity: 1;
 }
 
 .ferris {

From c7749a9138a761d04ee9cd7422fe29c9f83a0983 Mon Sep 17 00:00:00 2001
From: Rafael Kraut <14234815+RafaelKr@users.noreply.github.com>
Date: Wed, 25 Oct 2023 10:00:09 +0200
Subject: [PATCH 2/3] Add note to Ferris introduction about hover opacity
 behavior

---
 src/ch00-00-introduction.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ch00-00-introduction.md b/src/ch00-00-introduction.md
index 536988cb19..8dc900e015 100644
--- a/src/ch00-00-introduction.md
+++ b/src/ch00-00-introduction.md
@@ -185,6 +185,10 @@ error. Ferris will also help you distinguish code that isn’t meant to work:
 In most situations, we’ll lead you to the correct version of any code that
 doesn’t compile.
 
+> Note: If Ferris gets in your way by overlaying the code, you can hover on the
+> code block to make Ferris a little transparent. On mobile devices just click
+> on the code block.
+
 ## Source Code
 
 The source files from which this book is generated can be found on

From 9e5348b92b04002a94ee8b9c25d35c2e95cab742 Mon Sep 17 00:00:00 2001
From: Rafael Kraut <14234815+RafaelKr@users.noreply.github.com>
Date: Sun, 29 Oct 2023 20:28:48 +0100
Subject: [PATCH 3/3] Make note about Ferris opacity more explicit

Touchscreen better describes what we actually mean. This also aligns it with the note in ch04-02-references-and-borrowing ("You can hover your mouse over the circles (or tap on a touchscreen)...")
---
 src/ch00-00-introduction.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/ch00-00-introduction.md b/src/ch00-00-introduction.md
index 8dc900e015..6c7e5f19af 100644
--- a/src/ch00-00-introduction.md
+++ b/src/ch00-00-introduction.md
@@ -185,9 +185,9 @@ error. Ferris will also help you distinguish code that isn’t meant to work:
 In most situations, we’ll lead you to the correct version of any code that
 doesn’t compile.
 
-> Note: If Ferris gets in your way by overlaying the code, you can hover on the
-> code block to make Ferris a little transparent. On mobile devices just click
-> on the code block.
+> Note: If Ferris gets in your way by overlaying the code, you can hover your
+> mouse on the code block to make Ferris a little transparent. On touchscreen
+> devices just tap on the code block.
 
 ## Source Code