Currently my grid image were aligned like this
But my goal is to make the grid image like this, notice the "img 1" were aligned on the center. How to achieve this?
HTML
<div class="container">
<div class="row imagetiles">
<div class="col-lg-3 col-md-3 col-sm-3 col-xs-6">
<img src=https://i.imgur.com/nXSiWbw.jpg class="img-responsive">
</div>
<div class="col-lg-3 col-md-3 col-sm-3 col-xs-6">
<img src=https://i.imgur.com/0dXOdvZ.jpg class="img-responsive">
</div>
<div class="col-lg-3 col-md-3 col-sm-3 col-xs-6">
<img src=https://i.imgur.com/nXSiWbw.jpg class="img-responsive">
</div>
<div class="col-lg-3 col-md-3 col-sm-3 col-xs-6">
<img src=https://i.imgur.com/0dXOdvZ.jpg class="img-responsive">
</div>
</div>
</div>
CSS
div.imagetiles div.col-lg-3.col-md-3.col-sm-3.col-xs-6{
padding: 0px;
}