<div>N1</div><br/>
 

<div id="justified-gallery" class="gallery">
 <a class="gallery-item" href="#"><img src="https://i.ibb.co/7r4n3gS/990704c4a2408147e34894e0b870dada.jpg" alt="990704c4a2408147e34894e0b870dada" border="0" /></a><a class="gallery-item" href="#"><img src="https://i.ibb.co/1Xgn4NT/640a1b7ad8fe4ae360a446760aa6a89c.jpg" alt="Image 2"></a>
</div>


<div>N2</div><br/>
 <div id="justified-gallery2" class="gallery">
   <a class="gallery-item" href="#"><img src="https://i.ibb.co/1Xgn4NT/640a1b7ad8fe4ae360a446760aa6a89c.jpg" alt="Image 2"></a>
 <a class="gallery-item" href="#"><img src="https://i.ibb.co/7r4n3gS/990704c4a2408147e34894e0b870dada.jpg" alt="990704c4a2408147e34894e0b870dada" border="0" /></a>
</div>

.gallery{
  width:1200px;
  margin:0 auto;
}

img{
  max-width:100%;
}

$(document).ready(function() {
    $('#justified-gallery').justifiedGallery({
        rowHeight: 427, 
        margins: 5, 
        lastRow: 'nojustify', 
        captions: false 
    });
});

$(document).ready(function() {
    $('#justified-gallery2').justifiedGallery({
        rowHeight: 427, 
        margins: 5, 
        lastRow: 'nojustify', 
        captions: false 
    });
});