body {
  background-color: #eef4ed;
  text-align: center;
}

.tileContainer {
  border: 10px solid black;
  display: inline-block;
  position: relative;
  width: 1024px;
  height: 500px;
  overflow: hidden;
  box-sizing: border-box;
}

.tile {
  position: relative;
  vertical-align: top;
  display: inline-block;
  border-right: 1px solid #eef4ed;
  border-bottom: 1px solid #eef4ed;
  box-sizing: border-box;
}

.tile:after {
  content: "";
  background-color: #cc1c32;
  width: 6px;
  height: 6px;
  position: absolute;
  top: 100%;
  right: 0px;
  transform: translate(50%, -50%);
  z-index: 2;
  line-height: 1;
}

/*-- no grid --*/

.noGrid .tile {
  border-right: 0px solid #eef4ed;
  border-bottom: 0px solid #eef4ed;
}

.noGrid .tile:after {
  content: none;
}