In my HTML page, I have a total of 12 blocks with 4 images in each row. However, I am interested in removing blocks 10 and 13 while keeping their positions empty. In addition, I want to ensure that there is no empty space present when viewed on a responsive layout. Check out the image for reference: here
You can find the code on CodePen by visiting this link: https://codepen.io/rahulv/pen/mwEQJo
<div class="col-sm-3"></div>
Instead of displaying content at positions 10 and 13, I would like to use blank spaces. Positions 11 and 12 should be aligned in the center.