Fix search section position on small devices

src/librustdoc/html/static/rustdoc.css

@@ -1570,7 +1570,10 @@ h4 > .notable-traits {
 		height: 73px;
 	}
 
-	#main {
+	/* This is to prevent the search bar from being underneath the <section>
+	 * element following it.
+	 */
+	#main, #search {
 		margin-top: 100px;
 	}