add code example

public/index.jade

@@ -7,9 +7,12 @@
 
 
 .grid-fluid.l-space-bottom-6
-  .c8.a4
+  .c5
     h3.text-headline  Start Quick, Build Fast
     p.text-body Express your ideas with clean, understandable code. Angular is simple to build on, easy to change, and friendly to the way UX designers work. Create a UI that is beautiful by default, with material design and support for web components.
+  .c7
+    p(data-height="256" data-theme-id="12714" data-slug-hash="pvKKQa" data-default-tab="html" data-user="alexwolfe" class='codepen')
+    script(async src="//assets.codepen.io/assets/embed/ei.js")
 
 .grid-fluid.l-space-bottom-6
   .c8
@@ -26,7 +29,4 @@
     p.text-body But don’t take our word for it. Ramp up in minutes, and build an app today.
 
 
-
-
-
 != partial("/_includes/_cta-bar")

public/resources/css/main.scss

@@ -23,4 +23,5 @@
 @import 'module/banner';
 @import 'module/cta-bar';
 @import 'module/buttons';
+@import 'module/code';
 @import 'module/sticker';

public/resources/css/module/_code.scss

@@ -0,0 +1,4 @@
+.cp_embed {
+  border-radius: 4px;
+  overflow: hidden;
+}

public/resources/css/module/_top-nav.scss

@@ -8,7 +8,7 @@
     margin: 0px ($unit * 9) 0px 0px;
     padding: 0px;
     height: 36px;
-    width: 135px;
+    width: 136px;
     float: left;
 
     a {