Not so OOCSS but highly reusable

dabblet.css

/* Not so OOCSS but highly reusable */
body {
	font-family: sans-serif;
}

.items {
	list-style-type: none;
	padding: 1em;
}
	/* Default skin */
	.item {
		border-bottom: 5px solid #ddd;
		margin: 1em 0;
		padding: 1em 0;
	}
		.item-title {
			font-size: 2em;
		}
		.item-title a {
			color: #555;
			text-decoration: none;
		}
		.item-call-to-action {
			padding: .5em;
			display: inline-block;
			font-weight: bold;
			text-decoration: none;
			background: #bbb;
			color: #fff;
		}
		
	/* Complex Skin */
	.complex {
		background: #ddd;
		padding: 1em;
	}
	.complex-title {
		font-size: 1.5em;
		background: #bbb;
		color: #fff;
		padding: .5em;
	}
	.complex-title a {
		color: #fff;
		text-decoration: none;
	}
	.nice-button {
		padding: .5em 1em;
		display: inline-block;
		font-weight: bold;
		text-decoration: none;
		background: #000;
		color: #fff;
		border-radius: 9px;
	}	

dabblet.html

<ul id="news" class="items">
  <li class="item complex">
    <h2 class="item-title complex-title"><a href="#">Headline</a></h2>
    <div class="item-body">
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.</p>
    </div>
    <p class="item-actions"><a href="#" class="item-call-to-action nice-button">Read more…</a></p>
  </li>
  <li class="item">
    <h2 class="item-title"><a href="#">This is a news title</a></h2>
    <div class="item-body">
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.</p>
    </div>
    <p class="item-actions"><a href="#" class="item-call-to-action">Read more…</a></p>
  </li>
  <li class="item">
    <h2 class="item-title"><a href="#">This is a news title</a></h2>
    <div class="item-body">
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.</p>
    </div>
    <p class="item-actions"><a href="#" class="item-call-to-action">Read more…</a></p>
  </li>
</ul>

settings.json

{"view":"split-vertical","prefixfree":"1","page":"css"}