Question

       <div class="newstitle">
            <ul class="newstitle">
                @foreach (var item in Model.Content)
                {
                    if (item.Value != null)
                    { 
                     <li>
                            <div class="newstitle_title">@item.Key.Name</div>
                        </li>
                    }
                }
           </ul> 
  </div>

 <script type="text/javascript">
  $(document).ready(function () {
     $('.newstitle li:nth-child(odd)').addClass('last');
 });
 </script>

I have this code, i ve been trying to run and it s breaking the css.

However, it should be like the following, please see the spacing between images:

how can i fix this? if you see there is both div and ul has the same class name.

This is what the generated html should be:

<div class="newstitle">
    <ul class="newstitle">
        <li>image</li>
        <li>image</li>
        <li>image</li>
        <li class="last">image</li>
        <li>image</li>
        <li>image</li>
        <li>image</li>
        <li class="last">image</li>
        <li>image</li>
        <li>image</li>
        <li>image</li>
        <li class="last">image</li>
    </ul>
    </div>

and here is the css:

.newstitle  {width:600px;overflow:hidden;margin:15px auto;}
.newstitle li {float:left;width:140px;height:170px;overflow:hidden;margin:0px 13px 0px 0px;display:inline;position:relative;}
.newstitle .last {float:left;width:140px;height:170px;overflow:hidden;margin:0px 0px 0px 0px;display:inline;position:relative;}

Answer 1

Try this :

$('li', 'ul.newstitle').filter(function() {return $(this).index()%4===0}).addClass('last');

FIDDLE