example of nesting in purecss.io grids
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<title>Nesting of Grids example with Pure css</title>
<link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.1.0/pure-min.css">
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<div class="pure-g-r">
<div class="pure-u-2-3">
<div class="pure-g-r">
<div class="pure-u-1-3">
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Nam cursus. Morbi ut mi. Nullam enim leo, egestas id, condimentum at, laoreet mattis, massa.</p>
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<div class="pure-u-1-3">
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Nam cursus. Morbi ut mi. Nullam enim leo, egestas id, condimentum at, laoreet mattis, massa.</p>
</div>
<div class="pure-u-1-3">
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Nam cursus. Morbi ut mi. Nullam enim leo, egestas id, condimentum at, laoreet mattis, massa.</p>
</div>
</div>
</div>
<div class="pure-u-1-3 ad">
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Nam cursus. Morbi ut mi. Nullam enim leo, egestas id, condimentum at, laoreet mattis, massa.</p>
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