:pencil: Draw holy grail, main structure

Thanks to : https://phuoc.ng/collection/css-layout/holy-grail/

dev-front/public/index.html

@@ -7,7 +7,7 @@
     <meta name="theme-color" content="#000000" />
     <meta
       name="description"
-      content="Web site created using create-react-app"
+      content="Create your custom Squad"
     />
     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
     <!--

dev-front/src/App.css

@@ -1,10 +1,30 @@
-.App-header {
-  background-color: #282c34;
-  min-height: 100vh;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
+body {
+    background-color: white;
+}
+
+header {
   font-size: calc(10px + 2vmin);
-  color: white;
 }
+
+.app {
+    display: flex;
+    flex-direction: column;
+}
+
+.editor {
+    /* Take the remaining height */
+    flex-grow: 1;
+
+    /* Layout the left sidebar, main content and right sidebar */
+    display: flex;
+    flex-direction: row;
+}
+
+.mech-picker {
+    width: 25%;
+}
+
+.custom-squad {
+    /* Take the remaining width */
+    flex-grow: 1;
+}

dev-front/src/App.tsx

@@ -3,13 +3,44 @@ import logo from './logo.svg';
 import './App.css';
 
 function App() {
-  return (
-    <div className="App">
-      <header className="App-header">
-        <h1>Squad Composer</h1>
-      </header>
-    </div>
-  );
+    return (
+        <div className='app'>
+            <header>
+                <h1>Squad Composer</h1>
+            </header>
+            <main className='editor'>
+                <aside className='mech-picker'>
+                    <h2>Mech picker</h2>
+                    <ul>
+                        <li>Mech 1</li>
+                        <li>Mech 2</li>
+                        <li>Mech 3</li>
+                        <li>Mech 4</li>
+                        <li>Mech 5</li>
+                        <li>Mech 6</li>
+                        <li>Mech 7</li>
+                        <li>Mech 8</li>
+                        <li>Mech 9</li>
+                        <li>Mech 10</li>
+                        <li>Mech 11</li>
+                        <li>Mech 12</li>
+                        <li>Mech 13</li>
+                        <li>Mech 14</li>
+                    </ul>
+                </aside>
+
+                <article className='custom-squad'>
+                    <h2>Custom squad</h2>
+                    <p>
+                        Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
+Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. 
+                    </p>
+                </article>
+
+            </main>
+            <footer>Squad Composer by DricomDragon</footer>
+        </div>
+    );
 }
 
 export default App;