добавлена заглушка на фон

src/App.css

@@ -1,38 +1,3 @@
 .App {
-  text-align: center;
-}
-
-.App-logo {
-  height: 40vmin;
-  pointer-events: none;
-}
-
-@media (prefers-reduced-motion: no-preference) {
-  .App-logo {
-    animation: App-logo-spin infinite 20s linear;
-  }
-}
-
-.App-header {
-  background-color: #282c34;
-  min-height: 100vh;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  font-size: calc(10px + 2vmin);
-  color: white;
-}
-
-.App-link {
-  color: #61dafb;
-}
-
-@keyframes App-logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
-}
+  font-family: inter;
+}

src/App.tsx

@@ -1,24 +1,11 @@
 import React from 'react';
-import logo from './logo.svg';
 import './App.css';
+import { MainScreen } from './components/mainScreen/mainScreen';
 
 function App() {
   return (
     <div className="App">
-      <header className="App-header">
-        <img src={logo} className="App-logo" alt="logo" />
-        <p>
-          Edit <code>src/App.tsx</code> and save to reload.
-        </p>
-        <a
-          className="App-link"
-          href="https://reactjs.org"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          Learn React
-        </a>
-      </header>
+      <MainScreen />      
     </div>
   );
 }

src/components/mainScreen/mainScreen.css

@@ -0,0 +1,12 @@
+.main-screen-container {
+    width: 100%;
+    height: 100vh;
+    position: relative;
+}
+
+.main-screen-model {
+    width: 100%;
+    height: 100%;
+    background: url('backgroundImagePng.png') 50% 50% no-repeat;
+    background-size: cover;
+}

src/components/mainScreen/mainScreen.tsx

@@ -0,0 +1,8 @@
+import React from "react";
+import './mainScreen.css';
+
+export const MainScreen:React.FC = React.memo(() => {
+    return <div className="main-screen-container">
+        <div className="main-screen-model"></div>
+    </div>
+})