add components

react-app/src/components/slider/slider.js

@@ -0,0 +1,20 @@
+import { Component } from "react";
+
+import "./css/slider.css";
+
+class Slider extends Component {
+    state = {};
+
+    render() {
+        return (
+            <div className="universe_slid">
+                <span className="universe_slid_active"></span>
+                <span className="universe_slid_disable"></span>
+                <span className="universe_slid_disable"></span>
+                <span className="universe_slid_disable"></span>
+            </div>
+        );
+    }
+}
+
+export default Slider;