fix(guide): simplify directory structure

guide/english/miscellaneous/change-the-css-of-an-element-using-jquery/index.md

@@ -0,0 +1,13 @@
+---
+title: Change the CSS of an Element Using jQuery
+---
+We can also change the CSS of an HTML element directly with jQuery.
+
+Query has a function called `.css()` that allows you to change the CSS of an element.
+
+    <script>
+      $(document).ready(function() {
+        $("#target1").css("color", "red");
+
+      });
+    </script>