message: fixed header styles.
diff: background-position: center center;
  background-repeat: no-repeat;
  }
  +
  +.main-content h1, .main-content h2, .main-content h3, .main-content h4, .main-content h5, .main-content h6 {
  + margin-top: 2rem;
  + margin-bottom: 1rem;
  + font-weight: normal;
  + color: #1dafec;
  +}
  