* {
  margin: 0;
}

::selection {
  background: transparent;
}
body {
  background-color: #2c2f34;
  display: flex;
  min-height: 100vh;
  overflow: hidden;
  font-family: sans-serif;
}

.grid {
  position: relative;
  width: 400px;
  height: 400px;
  margin: auto;
}
.win {
  position: absolute;
  width: 100vw;
  height: 100vh;
  line-height: 100vh;
  font-size: 30px;
  text-align: center;
  font-weight: bold;
  color: #fff;
  opacity: 0;
  z-index: 0;
}
.item {
  z-index: 999;
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: #b5636c;
  text-align: center;
  line-height: 100px;
  font-size: 24px;
  color: #1e1f29;
  cursor: pointer;
}

.special {
  position: absolute;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: #fff2;
}