* {
    box-sizing: border-box;
  }
  
  body {
    background: #f1f1f1;
  }
  
  .header {
    padding: 30px;
    text-align: center;
    background: white;
  }
  
  .header h1 {
    font-family: Barlow Semi Condensed, sans-serif;
    font-weight: 600;
    font-size: 50px;
  }

  .header-logo {
    height: 100px;
  }

  .site-list {
    list-style-type: none;
    align-content: center;
    margin-top: 30px;
  }

  .btn {
    background-color: #00adad;
    border: 1px solid #00adad;
    border-radius: 24px;
    color: #2d2f32;
    cursor: pointer;
    display: block;
    font-family: Arial, Verdana, Segoe UI, Tahoma, Geneva, sans-serif;
    font-size: 16px;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 30px;
    padding: 24px 48px;
    text-align: center;
    text-decoration: none;
    width: 500px;
  }

  .btn:hover {
    background-color: #abe4e4;
    border-color: #00adad;
  }

  .btn:focus {
    background-color: #abe4e4;
    border-color: #00adad;
  }

@media screen and (max-width: 800px) {
    .header-logo {
        height: 80px;
      }
    .header h1 {
        font-size: 40px;
      }
    .btn {
        font-size: 1.5rem;
        width: 350px;
        padding: 16px 32px;
    }
  }
  
@media screen and (max-width: 600px) {
    .header-logo {
        height: 50px;
      }
    .header h1 {
        font-size: 30px;
      }
  }