* {
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
}

body {
  background: #000;
  margin: 0;
  overflow: hidden;
  user-select: none;
  -moz-user-select: none;
  -webkit-user-select: none;
}

#game {
  position: absolute;
  width: 100vw;
  height: 100vh;
}

.tile {
  position: absolute;
  border-radius: 5px;
  transition: top 0.3s linear, left 0.1s linear, opacity 0.1s linear,
    background-color 0.5s linear;
  font-family: "Julius Sans One", sans-serif;
  font-size: 8vh;
  line-height: 8vh;
  text-align: center;
  text-overflow: hidden;
  overflow: hidden;
  padding: 1vh;
  width: 10vw;
  height: 10vh;
  background: #000;
  color: #000;
  border: 1px solid black;
  cursor: pointer;
}

.sel {
  background: #fff !important;
}

.yh {
  top: -10vh;
}
.y0 {
  top: 0;
}
.x0 {
  left: 0;
}
.y1 {
  top: 10vh;
}
.x1 {
  left: 10vw;
}
.y2 {
  top: 20vh;
}
.x2 {
  left: 20vw;
}
.y3 {
  top: 30vh;
}
.x3 {
  left: 30vw;
}
.y4 {
  top: 40vh;
}
.x4 {
  left: 40vw;
}
.y5 {
  top: 50vh;
}
.x5 {
  left: 50vw;
}
.y6 {
  top: 60vh;
}
.x6 {
  left: 60vw;
}
.y7 {
  top: 70vh;
}
.x7 {
  left: 70vw;
}
.y8 {
  top: 80vh;
}
.x8 {
  left: 80vw;
}
.y9 {
  top: 90vh;
}
.x9 {
  left: 90vw;
}
.fade-out {
  opacity: 0;
}