style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

.wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(
  to bottom right,
  rgba(248, 165, 194, .9),
  rgba(99, 205, 218, .9)
  ),
  url(./mountain.jpg);
  background-position: center;
  background-size: cover;
}

h1 {
  font-size: 20rem;
  font-weight: 900;
  letter-spacing: 2rem;
  text-transform: uppercase;
  background: url(./mountain.jpg);
  background-position: center;
  background-size: cover;
  -webkit-text-fill-color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  cursor: pointer;
}

p {
  position: absolute;
  font-size: 2.6rem;
  letter-spacing: .5rem;
  color: #303952;
  margin-bottom: -25rem;
  margin-left: -2rem;
}

.nav {
  height: 100vh;
  position: absolute;
  left: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.nav .btn {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background-color: #303952;
  cursor: pointer;
}

.nav .btn:not(:last-child) {
  margin-bottom: .5rem;
}

@media only screen and (max-width: 1000px) {
  h1 {
    font-size: 14rem;
  }
}

@media only screen and (max-width: 600px) {
  .wrapper {
    background: linear-gradient(
    to bottom right,
    rgba(248, 165, 194, .9),
    rgba(99, 205, 218, .9)
    ),
    url(./mountain-mob.jpg);
    background-position: center;
    background-size: cover;
  }

  h1 {
    font-size: 10rem;
    letter-spacing: 1rem;
    transform: rotate(90deg);
  }

  p {
    display: none;
  }
}