App.css

header {
  background-repeat: none;
  background-size: cover;
  background: linear-gradient(to right, hsl(235, 64%, 67%), hsl(280, 87%, 65%));
  padding: 1.5em;
  padding-bottom: 4em;
}

main {
  padding: 1.5em;
  position: absolute;
  top: 32%;
  left: 0;
  right: 0;
  bottom: 0;
}

.nav-wrapper,
.main-wrapper {
  max-width: 550px;
  margin: auto;
}

.nav {
  display: flex;
  background: transparent;
  justify-content: space-between;
  padding: 2em 0em;
}

.nav__title {
  text-transform: uppercase;
  letter-spacing: 0.5rem;
  color: white;
  font-size: 2rem;
  font-weight: 700;
}

.header-dark-img {
  background-image: url(./assets/bg-desktop-dark.jpg);
  background-size: cover;
  background-repeat: no-repeat;
}

.header-light-img {
  background-image: url(./assets/bg-desktop-light.jpg);
  background-size: cover;
  background-repeat: no-repeat;
}

.content-placeholder {
  text-align: center;
  padding: 2em;
  margin: 1em 0em;
  border-radius: 8px;
  box-shadow: 0px 9px 17px -10px rgba(0, 0, 0, 0.45);
}

/* .bottom-text {
  color: hsl(235, 64%, 67%);
  text-align: center;
  padding: 1.5em;
} */

@media only screen and (max-width: 375px) {
  main {
    top: 32%;
  }
}

@media only screen and (min-width: 380px) {
  main {
    top: 28%;
  }
}

@media only screen and (min-width: 700px) and (max-width: 1080px) {
  main {
    top: 26%;
  }
}

@media only screen and (min-width: 1440px) {
  main {
    top: 21%;
  }
}

@media only screen and (min-width: 1640px) {
  main {
    top: 23%;
  }
}