h1 {
  font-size: 3em;
  color: #ffdd57;
  font-family: 'Courier New', monospace;
  text-shadow: 0 0 5px #f07a2c, 0 0 10px #f0870f, 0 0 20px #e94a00;
  animation: aparecer 2s ease-out forwards, brillar 2s infinite alternate;
  opacity: 3;
  margin-bottom: 10px;
}

p {
  font-size: 1.2em;
  color: #ffffff;
  text-shadow: 1px 1px 5px rgba(255, 255, 255, 0.4);
  margin-bottom: 20px;
}

body {
      margin: 0;
      padding: 0;
      height: 100vh;
      background: url(https://i.makeagif.com/media/9-08-2016/h1XKAq.gif) center center fixed;
      background-size: 100%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-family: Arial, sans-serif;
      text-align: center;
      background-color: #111;
      color: white;
      font-family: Arial, sans-serif;
      height: 100vh;
      margin: 0;
      display: flex;
      justify-content: center;
      align-items: center;
      flex-direction: column;
    }


    .enter-button {
      padding: 15px 30px;
      font-size: 20px;
      background-color: #eb891a;
      color: white;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      transition: background-color 0.3s;
    }

    .enter-button:hover {
      background-color: #eb1111;
    }