Moved neccesary css to App.css

src/components/css/App.css

@@ -1,6 +1,29 @@
+* {
+    box-sizing: border-box;
+}
+
+a:link {
+    color: #FFFFFF;
+    text-decoration: none;
+    cursor: pointer;
+}
+
+a:visited {
+    color: #FFF0F0;
+    text-decoration: none;
+    cursor: pointer;
+}
+
+html, body {
+    font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;    margin:0;
+    width:100%;
+    background-color: #3F3F4A;
+}
+
 .App {
+    height: 100vh;
     display:flex;
-    flex-direction: column;
+    flex-direction:column;
 }
 
 @media only screen and (max-width: 600px) {