Finished styling section.

namer_app/lib/main.dart

@@ -42,18 +42,20 @@ class MyHomePage extends StatelessWidget {
     var pair = appState.current;
 
     return Scaffold(
-      body: Column(
-        children: [
-          Text('A random wordpair:'),
-          BigCard(pair: pair),
-          ElevatedButton(
-            onPressed: () {
-              appState.getNext();
-            },
-            child: Text('Next'),
-          ),
-
-        ],
+      body: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            BigCard(pair: pair),
+            SizedBox(height: 10.0), // Just a spacer.
+            ElevatedButton(
+              onPressed: () {
+                appState.getNext();
+              },
+              child: Text('Next'),
+            ),
+          ],
+        ),
       ),
     );
   }
@@ -74,12 +76,15 @@ class BigCard extends StatelessWidget {
       color: theme.colorScheme.onPrimary,
     );
 
-
     return Card(
       color: theme.colorScheme.primary,
       child: Padding(
         padding: const EdgeInsets.all(15.0),
-        child: Text(pair.asLowerCase, style: style),
+        child: Text(
+          pair.asLowerCase,
+          style: style,
+          semanticsLabel: "${pair.first} ${pair.second}",
+        ),
       ),
     );
   }