body {
  background: #efefef;
}

.masonry {
  /* Masonry container */
  column-count: 4;
  column-gap: 1em;
  max-width: 1300px;
  margin: 0 auto;
}

.item {
  display: inline-block;
  background: #fff;
  margin: 0 0 1.5em;
  width: 100%;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-shadow: 0px 1px 1px 0px rgba(0, 0, 0, 0.18);
  border-radius: 3px;
  -moz-border-radius: 3px;
  -webkit-border-radius: 3px;
}

.item .text-box {
  padding: 1.5em;
  padding-top: 8px;
}

img, iframe {
  max-width: 100%;
  height: auto;
  display: block;
}