/* Isotope */
.grid-sizer,
.grid-item {width:25%;}

@media screen and (max-width: 992px) {
  .grid-sizer,
  .grid-item {width:33.333%;}
}

@media screen and (max-width: 768px) {
  .grid-sizer,
  .grid-item {width:50%;}
}

@media screen and (max-width: 550px) {
  .grid-sizer,
  .grid-item {width:100%;}
}