h1, h2, h3, h4 {
      color: #000; line-height: 1.2;
      text-decoration: none;
      font-family: Georgia, serif;
      font-weight: normal;
      letter-spacing: 2px;
    }

      h4 {
      color: #000; line-height: 1.2;
      text-decoration: none;
      font-family: Georgia, serif;
      font-weight: bold;
      letter-spacing: 3px;
    }



    pre{
      color:green; 
      background: white;
      border: 0;
      text-decoration: none;
       
    }