* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 200vh;
  background: #000;
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: #fff;
}

.sub-headings {
  max-width: 700px;
  text-align: center;
  margin: 20px;
  font-family: sans-serif;
  line-height: 30px;
}

h1 {
  margin-top: 50px;
  color: #fff;
  text-align: center;
  font-size: 4rem;
  margin-bottom: 6rem;
}

.arrow {
  width: 45px;
  height: 45px;
  border: 2px solid white;
  border-radius: 50%;
  position: absolute;
  bottom: 30px;
  margin: auto;
  transition: ease-in;
  animation: bounce 1.5s infinite;
}

.arrow:before {
  content: "";
  position: absolute;
  top: 11px;
  left: 13px;
  width: 12px;
  height: 12px;
  border-left: 2px solid #fafafa;
  border-bottom: 2px solid #fafafa;
  transform: rotate(-45deg);
}

@keyframes bounce {
  0% {
    transform: translate(0);
  }
  20% {
    transform: translateY(15px);
  }
  40% {
    transform: translate(0);
  }
}

@-webkit-keyframes bounce {
  0% {
    transform: translate(0);
  }
  20% {
    transform: translateY(15px);
  }
  40% {
    transform: translate(0);
  }
}

.fade-in {
  opacity: 1;
  transition: 1s all ease-in;
}

.fade-out {
  opacity: 0;
  transition: 1s all ease-out;
}