Improve display of crate name when hovered

Author: GuillaumeGomez

src/librustdoc/html/static/css/rustdoc.css

@@ -554,7 +554,7 @@ ul.block, .block li {
 
 .sidebar-crate h2 a {
 	display: block;
-	margin: 0 calc(-24px + 0.25rem) 0 -0.5rem;
+	margin: 0 calc(-24px + 0.25rem) 0 -0.2rem;
 	/* Align the sidebar crate link with the search bar, which have different
 		font sizes.
 
@@ -569,7 +569,7 @@ ul.block, .block li {
 		x = ( 16px - 0.57rem ) / 2
 	*/
 	padding: calc( ( 16px - 0.57rem ) / 2 ) 0.25rem;
-	padding-left: 0.5rem;
+	padding-left: 0.2rem;
 }
 
 .sidebar-crate h2 .version {
@@ -578,7 +578,7 @@ ul.block, .block li {
 	font-size: 1rem;
 	overflow-wrap: break-word;
 	/* opposite of the link padding, cut in half again */
-	margin-top: calc( ( -16px + 0.57rem ) / 2 );
+	margin-top: calc( ( -4px + 0.57rem ) / 2 );
 }
 
 .sidebar-crate + .version {