* { box-sizing: border-box; }
.grid {
  background: transparent;
}
/* clear fix */
.grid:after {
  content: '';
  display: block;
  clear: both;
}

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

@media only screen and (max-width: 991px) {
.grid-item {
  width: 50%;
}
}
@media only screen and (min-width: 992px) {
  .grid-item {
    width: 33.333%;
  }
  }
.grid-item {
  float: left;
  padding: 5px;
}

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