* { box-sizing: border-box; margin: 0; }

body {
  background-color: #000000;
  color: #FFFFFF;
  font-family: Arial, Helvetica, sans-serif;
  font-size: small;
  max-width: 1100px;
}

li { margin: 8px 0px; }
ul { padding-left: 24px; }
a:link, a:visited { color: #00FF00; }
a:hover, a:active { color: #FFFFFF; }
hr { border: 1px solid #FFFFFF; margin: 8px 0px; }

.header { border-bottom: 1px solid #FFFFFF; }
.sidebar { float: left; width: 150px; }

.sidebar .nav-links img {
  border-bottom: 1px solid #FFFFFF;
  border-right: 1px solid #FFFFFF;
}

.sidebar .info-panel { padding-left: 8px; }
.main { margin-left: 150px; padding: 8px 16px; }
.main img { display: block; margin: 16px auto; }