<h1>Masonry - imagesLoaded progress</h1>

<div class="grid">
  <div class="grid-sizer"></div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/orange-tree.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/submerged.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/look-out.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/one-world-trade.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/drizzle.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/cat-nose.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/contrail.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/golden-hour.jpg" />
  </div>
  <div class="grid-item">
    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/82/flight-formation.jpg" />
  </div>
</div>

* { box-sizing: border-box; }

/* force scrollbar */
html { overflow-y: scroll; }

body { font-family: sans-serif; }

/* ---- grid ---- */

.grid {
  background: #DDD;
}

/* clear fix */
.grid:after {
  content: '';
  display: block;
  clear: both;
}

/* ---- .grid-item ---- */

.grid-sizer,
.grid-item {
  width: 33.333%;
}

.grid-item {
  float: left;
}

.grid-item img {
  display: block;
  max-width: 100%;
}

// external js: masonry.pkgd.js, imagesloaded.pkgd.js

// init Masonry
var $grid = $('.grid').masonry({
  itemSelector: '.grid-item',
  percentPosition: true,
  columnWidth: '.grid-sizer'
});
// layout Masonry after each image loads
$grid.imagesLoaded().progress( function() {
  $grid.masonry();
});