>
                <input type="text" class="span3" placeholder="12">
                <label>@gridColumnWidth</label>
                <input type="text" class="span3" placeholder="60px">
                <label>@gridGutterWidth</label>
                <input type="text" class="span3" placeholder="20px">
                <label>@gridColumnWidth1200</label>
                <input type="text" class="span3" placeholder="70px">
                <label>@gridGutterWidth1200</label>
                <input type="text" c