body, html { 
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

body {
  background-image: url("bg-img.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
}

:root {
  --jeopardy-blue: #060CE9;
  --font-color-main: #fff;
}

.flex {
  display: flex;
  justify-content: center;
  align-items: center;
}

h1 {
  font-family: "Agbalumo", sans-serif;
  font-size: 3rem;
  background-color: rgba(255, 255, 255, 0.3);
  padding: 0 .5em;
}

.text {
  color: var(--font-color-main);
  text-shadow: 2px 2px black;
  border-radius: 20px;
}

.card {
  position: relative;
  background-color: var(--jeopardy-blue);
  width: 400px;
  height: 200px;
  text-align: center;
  padding: 1em;
  text-transform: uppercase;
  transform-style: preserve-3d;
  transition: all 4s;
}

.card-front {
  position: absolute;
  margin: 1em;
}

.card:hover {
  transform: rotateY(180deg);
}

.card-front {
  backface-visibility: hidden;
}

.card:hover .card-front {
  backface-visibility: hidden;
}

.card-back {
  transform: rotateY(180deg);
  backface-visibility: hidden;
}