WordPress Ready Responsive Masonry Gallery Developed by Prem Regmi for Next Bootstrap. http://www.nextbootstrap.com/2016/01/wordpress-ready-responsive-masonry.html

wp-masonry.css

/*--------------------------------------------------------------
## Galleries
--------------------------------------------------------------*/
.gallery {
  margin-bottom: 1.5em;
  display: block;
  -webkit-column-gap: 2.25rem;
  -moz-column-gap: 2.25rem;
  column-gap: 12.25rem;
}

.gallery-item {
  display: inline-block;
  text-align: center;
  vertical-align: top;
  width: 100%;
}

.gallery.gallery-columns-5{
  -webkit-column-count: 5;
  -moz-column-count: 5;
  column-count: 5;
}
@media(max-width: 1170px){
  .gallery.gallery-columns-5{
    -webkit-column-count: 4;
    -moz-column-count: 4;
    column-count: 4;
  }
}


/*-4 columns------*/
.gallery.gallery-columns-4{
  -webkit-column-count: 4;
  -moz-column-count: 4;
  column-count: 4;
}

/*-3 columns------*/
.gallery.gallery-columns-3{
  -webkit-column-count: 3;
  -moz-column-count: 3;
  column-count: 3;
}

/*-2 columns------*/
.gallery.gallery-columns-2{
  -webkit-column-count: 2;
  -moz-column-count: 2;
  column-count: 2;
}

/*-1 columns------*/
.gallery.gallery-columns-1{
  -webkit-column-count: 1;
  -moz-column-count: 1;
  column-count: 1;
}


/*--------Responsive---------*/
@media(max-width: 991px){
  .gallery.gallery-columns-4,
  .gallery.gallery-columns-5{
    -webkit-column-count: 3;
    -moz-column-count: 3;
    column-count: 3;
  }
}

@media(max-width: 767px){
  .gallery.gallery-columns-4,
  .gallery.gallery-columns-5,
  .gallery.gallery-columns-3{
    -webkit-column-count: 2;
    -moz-column-count: 2;
    column-count: 2;
  }
}

@media(max-width: 540px){
  .gallery.gallery-columns-4,
  .gallery.gallery-columns-5,
  .gallery.gallery-columns-3,
  .gallery.gallery-columns-2{
    -webkit-column-count: 1;
    -moz-column-count: 1;
    column-count: 1;
  }
}

.gallery .gallery-item{
  display: inline-block !important;
  width: 100% !important;
  max-width: 100% !important;
  position: relative;
  display: block;
  padding: 3px;
  background-color: #fff;
  border: 1px solid #e5e5e5;
  border-radius: .25rem;
  float: none !important;
  margin-right: 0 !important;
  margin-bottom: 0 !important;
  margin-bottom: 2.25rem !important;
}


/*=====  End of Gallery Page  ======*/