demo: updating for new layouts

Author: Nes-si

demo/styles/demo.scss

@@ -10,8 +10,7 @@ body {
 }
 
 .container {
-    max-width: 600px;
-    @media screen and (min-width: 768px) {
-        margin: 50px auto;
-    }
+    width: 100%;
+    height: 600px;
+    padding: 10px;
 }