11 files changed, 71 insertions, 32 deletions
diff --git a/front/src/App.js b/front/src/App.js
deleted file mode 100644
index 3784575..0000000
--- a/front/src/App.js
+++ /dev/null
@@ -1,25 +0,0 @@
-import logo from './logo.svg';
-import './App.css';
-
-function App() {
-  return (
-    <div className="App">
-      <header className="App-header">
-        <img src={logo} className="App-logo" alt="logo" />
-        <p>
-          Edit <code>src/App.js</code> and save to reload.
-        </p>
-        <a
-          className="App-link"
-          href="https://reactjs.org"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          Learn React
-        </a>
-      </header>
-    </div>
-  );
-}
-
-export default App;
diff --git a/front/src/App.test.js b/front/src/App.test.tsx
index 1f03afe..2a68616 100644
--- a/front/src/App.test.js
+++ b/front/src/App.test.tsx
@@ -1,3 +1,4 @@
+import React from 'react';
 import { render, screen } from '@testing-library/react';
 import App from './App';
 
diff --git a/front/src/App.tsx b/front/src/App.tsx
new file mode 100644
index 0000000..47cc1ed
--- /dev/null
+++ b/front/src/App.tsx
@@ -0,0 +1,27 @@
+import './App.css';
+import Sidebar from './Emelents/Sidebar';
+import { createBrowserRouter, RouterProvider } from 'react-router';
+import IndexElement from './Emelents/IndexElement';
+import ClassesList from './Emelents/ClassList';
+
+const router = createBrowserRouter([
+    {
+        index: true,
+        element: (<IndexElement />),
+    },
+    {
+        path: "/classes",
+        element: (<ClassesList />),
+    },
+]);
+
+function App() {
+    return (
+        <div>
+            <Sidebar />
+            <RouterProvider router={router} />
+        </div>
+    );
+}
+
+export default App;
diff --git a/front/src/Emelents/ClassList.tsx b/front/src/Emelents/ClassList.tsx
new file mode 100644
index 0000000..f0f6fcc
--- /dev/null
+++ b/front/src/Emelents/ClassList.tsx
@@ -0,0 +1,7 @@
+function ClassesList() {
+    return (
+        <h1> Classes list </h1>
+    );
+}
+
+export default ClassesList;
diff --git a/front/src/Emelents/IndexElement.tsx b/front/src/Emelents/IndexElement.tsx
new file mode 100644
index 0000000..4eda815
--- /dev/null
+++ b/front/src/Emelents/IndexElement.tsx
@@ -0,0 +1,9 @@
+function IndexElement() {
+    return (
+        <div>
+            <h1> Index element </h1>
+        </div>
+    );
+}
+
+export default IndexElement;
diff --git a/front/src/Emelents/Sidebar.tsx b/front/src/Emelents/Sidebar.tsx
new file mode 100644
index 0000000..c5a4a9c
--- /dev/null
+++ b/front/src/Emelents/Sidebar.tsx
@@ -0,0 +1,12 @@
+function Sidebar() {
+    return (
+        <nav className='Sidebar'>
+            <h1> Test </h1>
+            <ul>
+            <li> <a href="/classes"> Class list </a> </li>
+            </ul>
+        </nav>
+    )
+}
+
+export default Sidebar;
diff --git a/front/src/index.css b/front/src/index.css
index ec2585e..dfdc4ba 100644
--- a/front/src/index.css
+++ b/front/src/index.css
@@ -1,13 +1,16 @@
 body {
-  margin: 0;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    padding: 0;
+    margin: 0;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
     'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
     sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    position: absolute;
+    top: 0px;
 }
 
 code {
-  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
     monospace;
 }
diff --git a/front/src/index.js b/front/src/index.tsx
index d563c0f..032464f 100644
--- a/front/src/index.js
+++ b/front/src/index.tsx
@@ -4,7 +4,9 @@ import './index.css';
 import App from './App';
 import reportWebVitals from './reportWebVitals';
 
-const root = ReactDOM.createRoot(document.getElementById('root'));
+const root = ReactDOM.createRoot(
+  document.getElementById('root') as HTMLElement
+);
 root.render(
   <React.StrictMode>
     <App />
diff --git a/front/src/react-app-env.d.ts b/front/src/react-app-env.d.ts
new file mode 100644
index 0000000..6431bc5
--- /dev/null
+++ b/front/src/react-app-env.d.ts
@@ -0,0 +1 @@
+/// <reference types="react-scripts" />
diff --git a/front/src/reportWebVitals.js b/front/src/reportWebVitals.ts
index 5253d3a..49a2a16 100644
--- a/front/src/reportWebVitals.js
+++ b/front/src/reportWebVitals.ts
@@ -1,4 +1,6 @@
-const reportWebVitals = onPerfEntry => {
+import { ReportHandler } from 'web-vitals';
+
+const reportWebVitals = (onPerfEntry?: ReportHandler) => {
   if (onPerfEntry && onPerfEntry instanceof Function) {
     import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
       getCLS(onPerfEntry);
diff --git a/front/src/setupTests.js b/front/src/setupTests.ts
index 8f2609b..8f2609b 100644
--- a/front/src/setupTests.js
+++ b/front/src/setupTests.ts