* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}



/* ---- isotope ---- */

.isotope {
  
  max-width: 1920px;
}

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

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

.item {
  float: left;
  width: 285px;
  margin-bottom: 20px;
}

.item figure {
  margin: 0px;
  padding: 0px;
}


/* 2 cols + 1 gutter = 100 + 20 + 100 */
.item.width2 { width: 610px; }
.item.height2 { height: 610px; }