body {
    font-size: 3em;
    background-color: #2c2c2c; 
    font-family: "Roboto", sans-serif;
    margin: auto;
    margin-top: 5vh;
    text-align: center;
  }
a{
  background-color: #535353;

  border: none;
  border-radius: 0.5em;
  color: white;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  padding: 10px;
  cursor: pointer;
}
.scene {
  width: 50vw;
  height: 50vh;
  margin: auto;
  perspective: 70vh;
  padding-bottom: 5vh;
}

.card {
  position: relative;
  width: 100%;
  height: 100%;
  
  cursor: pointer;
  transform-style: preserve-3d;
  transform-origin: center right;
  transition: transform 0.7s;
}

.card.is-flipped {
  transform:  rotateX(-180deg);
}
.cardtext{
    padding-left: 20%;
    padding-right: 20%;
  padding-top: 10%;
}
.card__face {
  border-radius: 75px;
  position: absolute;
  width: 100%;
  height: 100%;
  color: white;
  text-align: center;
  font-weight: bold;
  font-size: 40px;
  backface-visibility: hidden;
}
.refresh{
  border: #229100;
  border-radius: 75px;
}
.card__face--front {
  background: #229100;
  
}

.card__face--back {
  background: black;
  transform: rotateX(180deg);
}