style.css

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: url('images/table.jpg') center/cover no-repeat;
  background-color: #735b58;
  margin: 0;
}

p {
  font-family: Helvetica, sans-serif;
}

#outer-case {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #100c08;
  border-radius: 2em;
  min-height: 32em;
  width: 20em;
  transform: rotate(20deg);
  box-shadow: 1em -1em 1em;
}

#screen {
  display: flex;
  min-height: 29em;
  text-align: center;
  justify-content: center;
  background-color: #f2f3f4;
  border-radius: 1em;
  width: 18em;
}

h2:nth-child(1) {
  margin-bottom: 0;
}

h2:nth-child(2) {
  margin: 0;
}

button {
  position: absolute;
  bottom: 3.5em;
  left: 8em;
  width: 8em;
  height: 3em;
  border-radius: 1em;
  box-shadow: 5px 3px 3px #4c4946;
  background-color: #fefe22;
  color: #100c08;
  padding: 0.5em;
  font-weight: 600;
  cursor: pointer;
}

.card {
  width: 16em;
  border-radius: 0.5em;
  transform-style: preserve-3d;
  transition: transform 3s;
  transform-origin: center right;
}

.card-face {
  position: absolute;
  border-radius: 1em;
  backface-visibility: hidden;
}

.card-face p {
  padding-left: 1em;
  padding-right: 1em;
  margin-top: 0;
  margin-bottom: 0;
}

.back,
.front {
  background-color: #f2f3f4;
  height: 26em;
}

.back h2,
.front h2 {
  margin-bottom: 0;
}

.back {
  transform: rotateY(180deg);
}

.card.flip {
  transform: translateX(-100%) rotateY(-180deg);
}

img {
  width: 16em;
}

/* Photo by Tim Mossholder on Unsplash - table */