Simplify :target CSS selector

Author: GuillaumeGomez

src/librustdoc/html/static/css/themes/ayu.css

@@ -351,11 +351,8 @@ a.test-arrow:hover {
 	color: #999;
 }
 
-:target, :target > * {
-	background: rgba(255, 236, 164, 0.06);
-}
-
 :target {
+	background: rgba(255, 236, 164, 0.06);
 	border-right: 3px solid rgba(255, 180, 76, 0.85);
 }
 

src/librustdoc/html/static/css/themes/dark.css

@@ -295,11 +295,8 @@ a.test-arrow:hover{
 	color: #999;
 }
 
-:target, :target > * {
-	background-color: #494a3d;
-}
-
 :target {
+	background-color: #494a3d;
 	border-right: 3px solid #bb7410;
 }
 

src/librustdoc/html/static/css/themes/light.css

@@ -284,11 +284,8 @@ a.test-arrow:hover{
 	color: #999;
 }
 
-:target, :target > * {
-	background: #FDFFD3;
-}
-
 :target {
+	background: #FDFFD3;
 	border-right: 3px solid #AD7C37;
 }