Merge from rustc

1 files changed, 12 insertions, 0 deletions

diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css
index a7d5f497756..054cfe7597e 100644
--- a/src/librustdoc/html/static/css/rustdoc.css
+++ b/src/librustdoc/html/static/css/rustdoc.css
@@ -1179,6 +1179,10 @@ a.test-arrow:hover {
 	position: relative;
 }
 
+.code-header a.tooltip:hover {
+	color: var(--link-color);
+}
+
 /* placeholder thunk so that the mouse can easily travel from "(i)" to popover
 	the resulting "hover tunnel" is a stepped triangle, approximating
 	https://bjk5.com/post/44698559168/breaking-down-amazons-mega-dropdown */
@@ -1191,6 +1195,14 @@ a.tooltip:hover::after {
 	content: "\00a0";
 }
 
+/* This animation is layered onto the mistake-proofing delay for dismissing
+	a hovered tooltip, to ensure it feels responsive even with the delay.
+	*/
+.fade-out {
+	opacity: 0;
+	transition: opacity 0.45s cubic-bezier(0, 0, 0.1, 1.0);
+}
+
 .popover.tooltip .content {
 	margin: 0.25em 0.5em;
 }