style.css

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body {
  background-color: black;
  display: flex;
  justify-items: center;
  align-items: center;
  flex-direction: column;
  color: white;
}

.heading {
  margin: 2rem 0 2rem;
  display: flex;
  justify-content: space-around;
  align-items: center;
  width: 100%;
}

.heading h1 {
  font-size: 3.5rem;
  margin: 3rem 0 2rem;
  font-family: "Press Start 2P", cursive;
  color: #663200;
}

.heading p {
  font-size: 2rem;
  text-align: center;
}

.holes {
  margin: 5rem 0 1rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 2rem;
}

.hole {
  position: relative;
  height: 60px;
  width: 100px;
  border-radius: 50%;
  background-color: #663200;
  overflow: hidden;
  display: none;
}

.button button {
  background-color: black;
  height: 50px;
  width: 120px;
  border: 2px solid white;
  margin: 2rem 1rem 0;
  color: white;
  font-size: 1.2rem;
}

.reset {
  display: none;
}

.mole {
  position: absolute;
  z-index: 1;
  height: 90px;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  animation: mole 400ms linear;
  pointer-events: none;
  transition: bottom linear 500ms;
}
@keyframes mole {
  from {
    bottom: -90px;
  }
  to {
    bottom: -30px;
  }
}