* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.container-img {
  width: 100%;
  max-width: 1100px;
  margin: auto;
  margin-top: 60px;
  margin-bottom: 60px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 250px;
  grid-gap: 20px;
}
.container-img .box-img img:hover {
  transform: scale(1.05);
}
.container-img .box-img figure {
  width: 100%;
  height: 100%;
}
.container-img .box-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.container-img .box-img:nth-child(4) {
  grid-row-start: span 2;
}

.ful-img {
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.9);
  position: fixed;
  top: 0;
  left: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 99;
}

.ful-img img {
  width: 90%;
  max-width: 800px;
}

.ful-img span {
  position: absolute;
  top: 10%;
  right: 25%;
  font-size: 40px;
  color: #fff;
  cursor: pointer;
}

@media screen and (max-width: 800px) {
  .container-img {
    width: 95%;
    grid-template-columns: repeat (2, 1fr);
    grid-gap: 10px;
    grid-template-rows: 200px;
  }
  .container-img .box-img:nth-child(1) {
    grid-column-start: span 1;
  }
}

@media screen and (max-width: 500px) {
  .container-img {
    width: 90%;
    grid-template-columns: repeat(1, 1fr);
  }
  .container-img .box-img img {
    height: 200px;
  }
}