@font-face {
  font-family: "flipper";
  src: url("font.ttf") format("truetype");
}
.flipper {
  position: relative;
  width: 100%;
  height: 100%;
  background-image: url(./bg.jpg);
  background-size: cover;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-auto-rows: 22%;
  grid-gap: 1.25%;
  padding: 26.48148148148148% 16.34259259259259% 0 16.34259259259259%;
}
.flipper .meta {
  position: absolute;
  top: 16.6%;
  font-family: flipper;
  font-weight: bolder;
  color: #4294dd;
}
.flipper .meta.l {
  left: 33%;
}
.flipper .meta.r {
  left: 76%;
}
.flipper.no-event {
  pointer-events: none;
}
.flipper .card {
  position: relative;
  cursor: pointer;
  -webkit-perspective: 700px;
  perspective: 700px;
  width: 100%;
  height: 100%;
}
.flipper .card.flipped,
.flipper .card.has-match {
  pointer-events: none;
}
.flipper .card.flipped .back,
.flipper .card.has-match .back {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}
.flipper .card.flipped .front,
.flipper .card.has-match .front {
  -webkit-transform: rotateY(360deg);
  transform: rotateY(360deg);
}
.flipper .card .back,
.flipper .card .front {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transition: -webkit-transform 400ms;
  transition: transform 400ms;
  transition: transform 400ms, -webkit-transform 400ms;
}
.flipper .card .back {
  z-index: 1;
  background-image: url(./back.png);
  background-size: cover;
}
.flipper .card .front {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
  background-size: cover;
}