I need this type of 4 row 4 columns bootstrap responsive carousel animation script
<ol class="carousel-indicators">
<li data-target="#Carousel" data-slide-to="0" class="active"></li>
<li data-target="#Carousel" data-slide-to="1"></li>
<li data-target="#Carousel" data-slide-to="2"></li>
</ol>
<!-- Carousel items -->
<div class="carousel-ier">
<div class="item active">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item active">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item active">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
<div class="item">
<div class="row">
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
<div class="col-md-3"><a href="#" class="thumbnail"><img src="http://placehold.it/250x250" alt="Image" style="max-width:100%;"></a></div>
</div><!--.row-->
</div><!--.item-->
first slide is workingin 4 row and 4 column but second slide is displayed only one row and 4columns only, how to display the 4 row and 4 columns in carousel