images to the center of the div in bootstrap

Issue

all the images should be center aligned irrespective to its size. i have tried with below code, but it doesn't work for me. any help would be appreciated

.border-class{
  border:1px solid #ddd;
  padding:5px;
  min-height:160px;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div class="container">
 <div class="col-xs-3"> 
   <div class="border-class">
  <img src="http://www.w3schools.com/bootstrap/cinqueterre.jpg" class="img-responsive" alt="Cinque Terre"/> 
     </div>
</div>
<div class="col-xs-3">   
  <div class="border-class">
  <img src="https://cdn2.iconfinder.com/data/icons/hawcons-gesture-stroke/32/icon_27_one_finger_click-128.png" class="img-responsive" alt="Cinque Terre"/> 
    </div>
</div>
<div class="col-xs-3">   
  <div class="border-class">
  <img src="http://www.w3schools.com/bootstrap/cinqueterre.jpg" class="img-responsive" alt="Cinque Terre"/> 
    </div>
</div>
<div class="col-xs-3"> 
  <div class="border-class">
  <img src="http://www.w3schools.com/images/colorpicker.png" class="img-responsive" alt="Cinque Terre"/> 
    </div>
</div>
</div>

Solution

Simply you can use css flex, get properties from css flexbox add those to your class.

.border-class {
  display: flex;
  justify-content: center;
  align-items: center;
}

Answered By - hashtag