.header_title {
  background-color: transparent;
  color: var(--background-text-color);
  text-align: center;
  text-transform: uppercase;
}

.main_content {
  background-image: url(../assets/background_image.png);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  min-height: 100vh;
  padding: 2rem;
}

.storyline {
  color: var(--background-text-color);
  display: flex;
  flex-direction: column;
  margin-top: 0.5rem;
}

.instructions {
  margin-left: 2rem;
}

.btn {
  /* THE order of this CSS properties matters */
  color: #444;
  background: none;
  border: none;
  font-size: 1.2rem;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.2rem;
  cursor: pointer;

  background-color: white;
  background-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);

  padding: 0.7rem 1rem;
  border-radius: 50rem;
  box-shadow: 0 1.75rem 3.5rem rgba(0, 0, 0, 0.1);
}

@media screen and (min-width:769px) {
  .main_content {
    padding: 1rem;
  }

  .storyline {
    margin-left: 2rem;
  }

  .btn {
    font-size: 2rem;
    width: 50%;
  }
}