html,
body {
  overflow: hidden;
  max-height: 100vh;
  margin: 0;
}

.flex {
  display: flex;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  height: 100vh;
}

#sky {
  background-color: #205e78;
  z-index: -5;
  position: absolute;
  width: 200vw;
  height: 100%;
}

.transition {
  transition: 3s;
}

#sheep {
  height: 120px;
}

.sheep-init {
  transform: translate(100vw);
}

.sheep-middle {
  transform: translate(0);
}

.sheep-end {
  transform: translate(-100vw);
}

.hills {
  width: 300%;
  height: 150%;
  border-radius: 50%;
  position: absolute;
  border: 1px solid black;
  background-color: #46775d;
  transform: translateY(40%);
}

#hill-one {
  z-index: -1;
}

#hill-two {
  z-index: -2;
  transform: translate(-300px, 35%);
  opacity: 0.5;
}

#hill-three {
  z-index: -3;
  transform: translate(300px, 30%);
  background-color: #46775d;
  opacity: 0.3;
}

.navbar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  text-align: center;
  background-color: rgba(255, 255, 255, 0.196);
  color: white;
}

/* https://codepen.io/piyushgupta092/pen/NWxJRWg */
.moon {
  background-color: red;
  position: absolute;
  margin: auto;
  top: 10%;
  right: 20%;
  background-color: transparent;
  height: 100px;
  width: 100px;
  border-radius: 50%;
  box-shadow: 25px 10px 0 0 white;
  opacity: 0.5;
}

.numbers {
  color: #000;
  border-radius: 50%;
  padding: 10px 20px;
  font-size: 24px;
  margin: 4px;
  width: 57px;
}

button:hover {
  cursor: pointer;
}

#arrow {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 57px;
  padding: 10px;
  color: black;
  transform: scale(1.2);
  cursor: pointer;
}

#cross {
  width: 57px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  margin: 4px;
  transform: scale(0.6);
  cursor: pointer;
}

.align-center {
  align-items: center;
}

.space-around {
  justify-content: space-around;
}

input {
  border-radius: 20px;
  height: 20px;
  padding: 4px 8px;
  font-size: 20px;
  width: 170px;
  height: 32px;
}