div#memory_board {
  background: #dadada;
  border: #999 1px solid;
  width: 700px;
  height: 700px;
  padding: 24px;
  margin: 10px auto;
  display: grid;
  grid-template-columns: repeat(4, 4fr);
  /* background-image: url("https://imgur.com/YiioFmW"); */
}
div#memory_board > div {
  border: #000 1px solid;
  width: 90px;
  margin: 10px auto;
  padding: 20px;
  font-size: 64px;
  cursor: pointer;
  text-align: center;
  height: 90px;
  /* background-image: url("./image/image7611memgame.jpg"); */

  background: url("./image/image7611memgame.jpg") no-repeat center center /
    contain;
}
body {
  background: rgb(99, 15, 168);
  text-align: center;
}
h1 {
  font-size: 48px;
  font-weight: 300;
  margin-bottom: 10px auto;
  color: rgb(230, 6, 6);
  text-align: center;
}
img {
  max-width: 100%;
}
.grid {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
}

.cell {
  width: 200px;
  height: 350px;
  background-image: url("./image/image7611memgame.jpg");
  margin-inline-start: 0%;
}
.board {
  display: grid;
  grid-template-columns: repeat(4, 4fr);
}