layout fix

src/App.css

@@ -1,12 +1,12 @@
 .App {
   text-align: center;
   background-color: #282c34;
-}
-
-.App-header {
   min-height: 100vh;
   display: flex;
   flex-direction: column;
+}
+
+.App-header {
   align-items: center;
   justify-content: center;
   font-size: calc(10px + 2vmin);

src/components/layout/Stepper.js

@@ -14,7 +14,7 @@ import { useLocation, useHistory } from "react-router-dom";
 const styles = () => ({
   stepperCard: {
     padding: "2px",
-    marginBottom: "15px"
+    margin: "15px"
   }
 });