body { background: black; color: #cccccc; font-family: arial; }
   h1 { text-align: center; }
   a { color: yellow; }
   img { border-style: none; }
   .warning { text-align: center; margin-top: 3em; margin-bottom: 3em; color: white; }
   .intro { text-align: center; margin-top: 3em; margin-bottom: 3em; }
   .text { text-align: left; margin-top: 3em; margin-bottom: 3em; }
   .footer { text-align: right; margin-top: 3em; margin-bottom: 3em; }