<div class="codepen-sample">
    <p data-height="420" data-theme-id="0" data-slug-hash="{{include.slug}}" data-default-tab="js" class='codepen'>See the Pen <a href='http://codepen.io/samplejs/pen/{{include.slug}}/'>{{include.title}}</a> by samplejs (<a href='http://codepen.io/samplejs'>@samplejs</a>) on <a href='http://codepen.io'>CodePen</a>.</p>
    <script async src="http://codepen.io/assets/embed/ei.js"></script>
</div>

<div class="codepen-sample">
    <p data-height="420" data-theme-id="light" data-slug-hash="{{include.slug}}" data-default-tab="js" class='codepen'>See the Pen <a href='http://codepen.io/samplejs/pen/{{include.slug}}/'>{{include.title}}</a> by samplejs (<a href='http://codepen.io/samplejs'>@samplejs</a>) on <a href='http://codepen.io'>CodePen</a>.</p>
    <script async src="http://codepen.io/assets/embed/ei.js"></script>
</div>

Update codepens to use light theme
Update codepens to use light theme