 Margins</h2>
            <p>
                Correctly resize margins when options are set.
            </p>
            <div class="epoch"></div>
            <div class="controls">
                <button data-index="0">No Margins</button>
                <button data-index="1">Big Margins</button>
                <button data-index="2">Small Margins</button>
            </div>
        </div>
        <script>
        $(function() {
            var sizes = [
                {margins: {top: null, left: null