* {
  box-sizing: border-box;
  max-width: 100%;
  overflow-wrap: break-word;
}
    body {
      background: url("img/hell-background.gif");
      background-repeat: no-repeat;
      background-size: cover;     /* lub: contain */
      background-position: center;
      background-attachment: fixed; /* opcjonalnie, jeśli chcesz efekt przyklejenia do okna */
      font-family: "Comic Sans MS", "Arial", cursive, sans-serif;
      color: black;
      text-align: center;
      margin: 0;
    }

    header {
      background: #120000;
      padding: 20px;
      border-bottom: 5px double #960202;
    }

    h1 {
      font-size: 60px;
      color: red;
      text-shadow: 2px 2px #960202;
      animation: blink 1s step-start infinite;
    }
    
    h2 {
      color: black;
      font-size: 35px;
    }
    
    h3 {
      color: black;
      }
      
    p {
      font-size: 22px;
    }
    
    h4 {
      font-size: 12px;
    }

    nav {
  background-color: #590101;
  padding: 10px;
  border-bottom: 3px dotted #960202;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
    }

    nav a {
      color: #c20000;
      text-decoration: none;
      font-weight: bold;
      margin: 0 15px;
      font-size: 20px;
    }

    nav a:hover {
      text-decoration: underline;
      color: red;
    }

    main {
      background: url("#");
      border: 6px groove #960202;
      padding: 20px;
      margin: 20px auto;
      width: 85%;
    }

    marquee {
      color: #960202;
      font-size: 24px;
      font-weight: bold;
    }

    .gifbar {
      margin: 20px 0;
    }

    footer {
      background: black;
      color: #960202;
      font-size: 12px;
      padding: 20px;
      border-top: 2px solid #960202;
    }

    @keyframes blink {
      50% { opacity: 0; }
    }
    @media (max-width: 768px) {
  main {
    width: 100%;
    margin: 0;
    border: none;
    padding: 15px;
  }

  nav a {
    display: block;
    margin: 8px 0;
    font-size: 18px;
  }

  img {
    max-width: 100%;
    height: auto;
  }

  .gifbar, .sponsorzy, .sponsorzy div {
    flex-direction: column;
    align-items: center;
  }

  marquee {
    font-size: 18px;
  }
}

@font-face {
  font-family: 'Comic Sans MS';
  src: url('inne/ComicSansMS.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}