.b {
  max-width: 1180px;
  height: 820px;
  background-color: #fff;
  margin: auto;
  position: relative;
  top: 100px;
  background: #222;
  transition: .;
}
.b1 {
  position: relative;
  /* left: 45px; */
  max-width: 1180px;
  background: #222;
  display: grid;
  text-align: center;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  grid-template-rows: minmax(100px, auto);
  margin: 40px;
  grid-auto-flow: dense;
  grid-gap: 10px;
}
.box {
  place-items: center;
  background-color: #333;
  padding: 10px;
  display: grid;
  font-size: 20px;
  color: #fff;
  transition: 0.5s;
}
.box:hover {
  background-color: #e91e63;
}
.box img {
  position: relative;
  max-width: 200px;
  margin-bottom: 10px;
  opacity: 0.7;
}
.box:nth-child(1) {
  grid-column: span 2;
  grid-row: span 1;
}
.box:nth-child(2) {
  grid-column: span 1;
  grid-row: span 2;
}
.box:nth-child(4) {
  grid-column: span 1;
  grid-row: span 2;
}
.box:nth-child(5) {
  grid-column: span 3;
  grid-row: span 1;
}
@media (max-width: 991px) {
  .b1 {
    grid-template-columns: repeat(auto-fill, minmax(50%, 1fr));
    grid-template-rows: minmax(auto, auto);
  }
  .box {
    grid-column: unset !important;
    grid-row: unset !important;
  }
}
@media (max-width: 1180px) {
    .b{
        background-color:rgba(0, 0, 0, 0);
    }
}