body, h1, h2, h3, p {
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
  }
  
  header {
    background-color: #000000;
    color: white;
    text-align: center;
    padding: 2% 5vw;
  }
  
  header h1 {
    font-size: 1.8rem;
    margin-bottom: 10px;
  }
  
  main {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
  }
  
  main h2 {
    font-size: 1.4rem;
    margin-bottom: 10px;
  }
  
  main p {
    margin-bottom: 15px;
  }

  .btn {
    text-align: center;
  }
  .btn button {
    border: none;
    border-radius: 3em;
    background-color: #000000;
    color: #ffffff;
    width: auto;
    height: auto;
    margin: 1vh;
    padding: 2%;
  }

  .btn button:hover {
    background-color: #525252;
  }
  
  footer {
    background-color: #ffffff;
    color: rgb(0, 0, 0);
    text-align: center;
    padding: 10px 0;
    border-top: solid 0.2px black;
  }
  
  footer p {
    font-size: 0.8rem;
    margin: 0.3vh;
  }
  
  @media screen and (max-width: 600px) {
    main {
      padding: 10px;
    }
  }